Home / 1,240,679,753.28-1,712,392,125.12-739,182,319.20

Finding the Fourth Proportional to 1,240,679,753.28, 1,712,392,125.12 and 739,182,319.20

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Solution

The fourth proportional to 1,240,679,753.28, 1,712,392,125.12 and 739,182,319.20 is: 1,020,222,969.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,679,753.28 : 1,712,392,125.12 = 739,182,319.20 : x
  2. Step 2: Convert to fraction form
    1,240,679,753.28/1,712,392,125.12 = 739,182,319.20/x
  3. Step 3: Cross multiply
    1,240,679,753.28x = 1,712,392,125.12 × 739,182,319.20
  4. Step 4: Simplify right side
    1,240,679,753.28x = 1,265,769,982,426,018,048
  5. Step 5: Solve for x
    x = 1,265,769,982,426,018,048/1,240,679,753.28
  6. Step 6: Final answer
    x = 1,020,222,969.77

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Double scale
Find fourth proportional to 1,240,679,754.28, 1,712,392,126.50 and 739,182,320.20
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.