Home / 87,756,439.20-131,634,658.80-42,406,807.20

Finding the Fourth Proportional to 87,756,439.20, 131,634,658.80 and 42,406,807.20

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Solution

The fourth proportional to 87,756,439.20, 131,634,658.80 and 42,406,807.20 is: 63,610,210.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,756,439.20 : 131,634,658.80 = 42,406,807.20 : x
  2. Step 2: Convert to fraction form
    87,756,439.20/131,634,658.80 = 42,406,807.20/x
  3. Step 3: Cross multiply
    87,756,439.20x = 131,634,658.80 × 42,406,807.20
  4. Step 4: Simplify right side
    87,756,439.20x = 5,582,205,596,569,384
  5. Step 5: Solve for x
    x = 5,582,205,596,569,384/87,756,439.20
  6. Step 6: Final answer
    x = 63,610,210.80

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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.