Home / 508,147,215.40-762,220,823.10-497,943,548.20

Finding the Fourth Proportional to 508,147,215.40, 762,220,823.10 and 497,943,548.20

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Solution

The fourth proportional to 508,147,215.40, 762,220,823.10 and 497,943,548.20 is: 746,915,322.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,147,215.40 : 762,220,823.10 = 497,943,548.20 : x
  2. Step 2: Convert to fraction form
    508,147,215.40/762,220,823.10 = 497,943,548.20/x
  3. Step 3: Cross multiply
    508,147,215.40x = 762,220,823.10 × 497,943,548.20
  4. Step 4: Simplify right side
    508,147,215.40x = 379,542,941,166,338,496
  5. Step 5: Solve for x
    x = 379,542,941,166,338,496/508,147,215.40
  6. Step 6: Final answer
    x = 746,915,322.30

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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.