Home / 78,312,246.30-117,468,369.45-62,187,932.70

Finding the Fourth Proportional to 78,312,246.30, 117,468,369.45 and 62,187,932.70

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Solution

The fourth proportional to 78,312,246.30, 117,468,369.45 and 62,187,932.70 is: 93,281,899.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,312,246.30 : 117,468,369.45 = 62,187,932.70 : x
  2. Step 2: Convert to fraction form
    78,312,246.30/117,468,369.45 = 62,187,932.70/x
  3. Step 3: Cross multiply
    78,312,246.30x = 117,468,369.45 × 62,187,932.70
  4. Step 4: Simplify right side
    78,312,246.30x = 7,305,115,053,735,337
  5. Step 5: Solve for x
    x = 7,305,115,053,735,337/78,312,246.30
  6. Step 6: Final answer
    x = 93,281,899.05

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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.