Home / 1,913,025,687.20-2,869,538,530.80-620,561,175.20

Finding the Fourth Proportional to 1,913,025,687.20, 2,869,538,530.80 and 620,561,175.20

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Solution

The fourth proportional to 1,913,025,687.20, 2,869,538,530.80 and 620,561,175.20 is: 930,841,762.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913,025,687.20 : 2,869,538,530.80 = 620,561,175.20 : x
  2. Step 2: Convert to fraction form
    1,913,025,687.20/2,869,538,530.80 = 620,561,175.20/x
  3. Step 3: Cross multiply
    1,913,025,687.20x = 2,869,538,530.80 × 620,561,175.20
  4. Step 4: Simplify right side
    1,913,025,687.20x = 1,780,724,202,954,929,664
  5. Step 5: Solve for x
    x = 1,780,724,202,954,929,664/1,913,025,687.20
  6. Step 6: Final answer
    x = 930,841,762.80

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Half scale
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Double scale
Find fourth proportional to 1,913,025,688.20, 2,869,538,532.30 and 620,561,176.20
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.