Home / 82,890,821.40-124,336,232.10-52,508,434.20

Finding the Fourth Proportional to 82,890,821.40, 124,336,232.10 and 52,508,434.20

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Solution

The fourth proportional to 82,890,821.40, 124,336,232.10 and 52,508,434.20 is: 78,762,651.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,890,821.40 : 124,336,232.10 = 52,508,434.20 : x
  2. Step 2: Convert to fraction form
    82,890,821.40/124,336,232.10 = 52,508,434.20/x
  3. Step 3: Cross multiply
    82,890,821.40x = 124,336,232.10 × 52,508,434.20
  4. Step 4: Simplify right side
    82,890,821.40x = 6,528,700,861,898,778
  5. Step 5: Solve for x
    x = 6,528,700,861,898,778/82,890,821.40
  6. Step 6: Final answer
    x = 78,762,651.30

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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.