Home / 12,900,949.14-17,802,951.95-7,320,211.76

Finding the Fourth Proportional to 12,900,949.14, 17,802,951.95 and 7,320,211.76

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Solution

The fourth proportional to 12,900,949.14, 17,802,951.95 and 7,320,211.76 is: 10,101,689.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,900,949.14 : 17,802,951.95 = 7,320,211.76 : x
  2. Step 2: Convert to fraction form
    12,900,949.14/17,802,951.95 = 7,320,211.76/x
  3. Step 3: Cross multiply
    12,900,949.14x = 17,802,951.95 × 7,320,211.76
  4. Step 4: Simplify right side
    12,900,949.14x = 130,321,378,101,489.11
  5. Step 5: Solve for x
    x = 130,321,378,101,489.11/12,900,949.14
  6. Step 6: Final answer
    x = 10,101,689.16

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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.