Home / 78,312,254.30-117,468,381.45-62,187,940.70

Finding the Fourth Proportional to 78,312,254.30, 117,468,381.45 and 62,187,940.70

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Solution

The fourth proportional to 78,312,254.30, 117,468,381.45 and 62,187,940.70 is: 93,281,911.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,312,254.30 : 117,468,381.45 = 62,187,940.70 : x
  2. Step 2: Convert to fraction form
    78,312,254.30/117,468,381.45 = 62,187,940.70/x
  3. Step 3: Cross multiply
    78,312,254.30x = 117,468,381.45 × 62,187,940.70
  4. Step 4: Simplify right side
    78,312,254.30x = 7,305,116,739,737,581
  5. Step 5: Solve for x
    x = 7,305,116,739,737,581/78,312,254.30
  6. Step 6: Final answer
    x = 93,281,911.05

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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.