Home / 1,205,964,374.10-1,808,946,561.15-478,953,086.10

Finding the Fourth Proportional to 1,205,964,374.10, 1,808,946,561.15 and 478,953,086.10

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Solution

The fourth proportional to 1,205,964,374.10, 1,808,946,561.15 and 478,953,086.10 is: 718,429,629.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,964,374.10 : 1,808,946,561.15 = 478,953,086.10 : x
  2. Step 2: Convert to fraction form
    1,205,964,374.10/1,808,946,561.15 = 478,953,086.10/x
  3. Step 3: Cross multiply
    1,205,964,374.10x = 1,808,946,561.15 × 478,953,086.10
  4. Step 4: Simplify right side
    1,205,964,374.10x = 866,400,538,052,774,912
  5. Step 5: Solve for x
    x = 866,400,538,052,774,912/1,205,964,374.10
  6. Step 6: Final answer
    x = 718,429,629.15

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Half scale
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Double scale
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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.