Home / 21,117,001.52-29,141,462.08-11,459,209.52

Finding the Fourth Proportional to 21,117,001.52, 29,141,462.08 and 11,459,209.52

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Solution

The fourth proportional to 21,117,001.52, 29,141,462.08 and 11,459,209.52 is: 15,813,709.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,117,001.52 : 29,141,462.08 = 11,459,209.52 : x
  2. Step 2: Convert to fraction form
    21,117,001.52/29,141,462.08 = 11,459,209.52/x
  3. Step 3: Cross multiply
    21,117,001.52x = 29,141,462.08 × 11,459,209.52
  4. Step 4: Simplify right side
    21,117,001.52x = 333,938,119,693,854.94
  5. Step 5: Solve for x
    x = 333,938,119,693,854.94/21,117,001.52
  6. Step 6: Final answer
    x = 15,813,709.13

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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.