Home / 129,865,045.95-179,216,663.72-74,109,356.10

Finding the Fourth Proportional to 129,865,045.95, 179,216,663.72 and 74,109,356.10

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Solution

The fourth proportional to 129,865,045.95, 179,216,663.72 and 74,109,356.10 is: 102,272,566.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,865,045.95 : 179,216,663.72 = 74,109,356.10 : x
  2. Step 2: Convert to fraction form
    129,865,045.95/179,216,663.72 = 74,109,356.10/x
  3. Step 3: Cross multiply
    129,865,045.95x = 179,216,663.72 × 74,109,356.10
  4. Step 4: Simplify right side
    129,865,045.95x = 13,281,631,550,308,884
  5. Step 5: Solve for x
    x = 13,281,631,550,308,884/129,865,045.95
  6. Step 6: Final answer
    x = 102,272,566.52

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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.