Home / 21,001,554.30-31,502,331.45-19,726,095.90

Finding the Fourth Proportional to 21,001,554.30, 31,502,331.45 and 19,726,095.90

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Solution

The fourth proportional to 21,001,554.30, 31,502,331.45 and 19,726,095.90 is: 29,589,143.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,001,554.30 : 31,502,331.45 = 19,726,095.90 : x
  2. Step 2: Convert to fraction form
    21,001,554.30/31,502,331.45 = 19,726,095.90/x
  3. Step 3: Cross multiply
    21,001,554.30x = 31,502,331.45 × 19,726,095.90
  4. Step 4: Simplify right side
    21,001,554.30x = 621,418,011,256,286
  5. Step 5: Solve for x
    x = 621,418,011,256,286/21,001,554.30
  6. Step 6: Final answer
    x = 29,589,143.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.