Home / 82,960,280.40-124,156,985.40-72,756,613.20

Finding the Fourth Proportional to 82,960,280.40, 124,156,985.40 and 72,756,613.20

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Solution

The fourth proportional to 82,960,280.40, 124,156,985.40 and 72,756,613.20 is: 108,886,345.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,960,280.40 : 124,156,985.40 = 72,756,613.20 : x
  2. Step 2: Convert to fraction form
    82,960,280.40/124,156,985.40 = 72,756,613.20/x
  3. Step 3: Cross multiply
    82,960,280.40x = 124,156,985.40 × 72,756,613.20
  4. Step 4: Simplify right side
    82,960,280.40x = 9,033,241,762,825,848
  5. Step 5: Solve for x
    x = 9,033,241,762,825,848/82,960,280.40
  6. Step 6: Final answer
    x = 108,886,345.60

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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.