Home / 129,865,045.20-179,216,662.68-74,109,355.35

Finding the Fourth Proportional to 129,865,045.20, 179,216,662.68 and 74,109,355.35

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Solution

The fourth proportional to 129,865,045.20, 179,216,662.68 and 74,109,355.35 is: 102,272,565.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,865,045.20 : 179,216,662.68 = 74,109,355.35 : x
  2. Step 2: Convert to fraction form
    129,865,045.20/179,216,662.68 = 74,109,355.35/x
  3. Step 3: Cross multiply
    129,865,045.20x = 179,216,662.68 × 74,109,355.35
  4. Step 4: Simplify right side
    129,865,045.20x = 13,281,631,339,193,202
  5. Step 5: Solve for x
    x = 13,281,631,339,193,202/129,865,045.20
  6. Step 6: Final answer
    x = 102,272,565.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.