Home / 21,041,988.91-29,057,999.51-19,895,634.58

Finding the Fourth Proportional to 21,041,988.91, 29,057,999.51 and 19,895,634.58

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Solution

The fourth proportional to 21,041,988.91, 29,057,999.51 and 19,895,634.58 is: 27,474,937.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,041,988.91 : 29,057,999.51 = 19,895,634.58 : x
  2. Step 2: Convert to fraction form
    21,041,988.91/29,057,999.51 = 19,895,634.58/x
  3. Step 3: Cross multiply
    21,041,988.91x = 29,057,999.51 × 19,895,634.58
  4. Step 4: Simplify right side
    21,041,988.91x = 578,127,339,876,779
  5. Step 5: Solve for x
    x = 578,127,339,876,779/21,041,988.91
  6. Step 6: Final answer
    x = 27,474,937.96

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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.