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Finding the Fourth Proportional to 112,329,978.10, 168,494,967.15 and 54,859,117.30

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Solution

The fourth proportional to 112,329,978.10, 168,494,967.15 and 54,859,117.30 is: 82,288,675.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,329,978.10 : 168,494,967.15 = 54,859,117.30 : x
  2. Step 2: Convert to fraction form
    112,329,978.10/168,494,967.15 = 54,859,117.30/x
  3. Step 3: Cross multiply
    112,329,978.10x = 168,494,967.15 × 54,859,117.30
  4. Step 4: Simplify right side
    112,329,978.10x = 9,243,485,167,341,496
  5. Step 5: Solve for x
    x = 9,243,485,167,341,496/112,329,978.10
  6. Step 6: Final answer
    x = 82,288,675.95

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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.