Home / 1,259,721,074.20-1,889,581,611.30-532,709,786.20

Finding the Fourth Proportional to 1,259,721,074.20, 1,889,581,611.30 and 532,709,786.20

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Solution

The fourth proportional to 1,259,721,074.20, 1,889,581,611.30 and 532,709,786.20 is: 799,064,679.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,721,074.20 : 1,889,581,611.30 = 532,709,786.20 : x
  2. Step 2: Convert to fraction form
    1,259,721,074.20/1,889,581,611.30 = 532,709,786.20/x
  3. Step 3: Cross multiply
    1,259,721,074.20x = 1,889,581,611.30 × 532,709,786.20
  4. Step 4: Simplify right side
    1,259,721,074.20x = 1,006,598,616,163,074,432
  5. Step 5: Solve for x
    x = 1,006,598,616,163,074,432/1,259,721,074.20
  6. Step 6: Final answer
    x = 799,064,679.30

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Half scale
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Double scale
Find fourth proportional to 1,259,721,075.20, 1,889,581,612.80 and 532,709,787.20
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.