Home / 12,900,949.14-17,802,951.96-7,320,211.74

Finding the Fourth Proportional to 12,900,949.14, 17,802,951.96 and 7,320,211.74

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Solution

The fourth proportional to 12,900,949.14, 17,802,951.96 and 7,320,211.74 is: 10,101,689.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,900,949.14 : 17,802,951.96 = 7,320,211.74 : x
  2. Step 2: Convert to fraction form
    12,900,949.14/17,802,951.96 = 7,320,211.74/x
  3. Step 3: Cross multiply
    12,900,949.14x = 17,802,951.96 × 7,320,211.74
  4. Step 4: Simplify right side
    12,900,949.14x = 130,321,377,944,248.02
  5. Step 5: Solve for x
    x = 130,321,377,944,248.02/12,900,949.14
  6. Step 6: Final answer
    x = 10,101,689.15

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1.5x scale

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.