Home / 21,258,101.28-29,337,113.72-11,966,270.92

Finding the Fourth Proportional to 21,258,101.28, 29,337,113.72 and 11,966,270.92

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Solution

The fourth proportional to 21,258,101.28, 29,337,113.72 and 11,966,270.92 is: 16,513,979.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,258,101.28 : 29,337,113.72 = 11,966,270.92 : x
  2. Step 2: Convert to fraction form
    21,258,101.28/29,337,113.72 = 11,966,270.92/x
  3. Step 3: Cross multiply
    21,258,101.28x = 29,337,113.72 × 11,966,270.92
  4. Step 4: Simplify right side
    21,258,101.28x = 351,055,850,784,369
  5. Step 5: Solve for x
    x = 351,055,850,784,369/21,258,101.28
  6. Step 6: Final answer
    x = 16,513,979.60

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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.