Home / 21,281,617.17-29,368,721.38-11,989,298.73

Finding the Fourth Proportional to 21,281,617.17, 29,368,721.38 and 11,989,298.73

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Solution

The fourth proportional to 21,281,617.17, 29,368,721.38 and 11,989,298.73 is: 16,545,282.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,281,617.17 : 29,368,721.38 = 11,989,298.73 : x
  2. Step 2: Convert to fraction form
    21,281,617.17/29,368,721.38 = 11,989,298.73/x
  3. Step 3: Cross multiply
    21,281,617.17x = 29,368,721.38 × 11,989,298.73
  4. Step 4: Simplify right side
    21,281,617.17x = 352,110,373,912,984.62
  5. Step 5: Solve for x
    x = 352,110,373,912,984.62/21,281,617.17
  6. Step 6: Final answer
    x = 16,545,282.77

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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.