Home / 66,521,592.79-99,782,389.20-21,083,387.29

Finding the Fourth Proportional to 66,521,592.79, 99,782,389.20 and 21,083,387.29

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Solution

The fourth proportional to 66,521,592.79, 99,782,389.20 and 21,083,387.29 is: 31,625,080.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,521,592.79 : 99,782,389.20 = 21,083,387.29 : x
  2. Step 2: Convert to fraction form
    66,521,592.79/99,782,389.20 = 21,083,387.29/x
  3. Step 3: Cross multiply
    66,521,592.79x = 99,782,389.20 × 21,083,387.29
  4. Step 4: Simplify right side
    66,521,592.79x = 2,103,750,756,172,404.75
  5. Step 5: Solve for x
    x = 2,103,750,756,172,404.75/66,521,592.79
  6. Step 6: Final answer
    x = 31,625,080.94

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Double scale
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Similar ratio
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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.