Home / 42,585,590.40-63,855,057.60-20,972,664.96

Finding the Fourth Proportional to 42,585,590.40, 63,855,057.60 and 20,972,664.96

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Solution

The fourth proportional to 42,585,590.40, 63,855,057.60 and 20,972,664.96 is: 31,447,508.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,585,590.40 : 63,855,057.60 = 20,972,664.96 : x
  2. Step 2: Convert to fraction form
    42,585,590.40/63,855,057.60 = 20,972,664.96/x
  3. Step 3: Cross multiply
    42,585,590.40x = 63,855,057.60 × 20,972,664.96
  4. Step 4: Simplify right side
    42,585,590.40x = 1,339,210,729,046,301.75
  5. Step 5: Solve for x
    x = 1,339,210,729,046,301.75/42,585,590.40
  6. Step 6: Final answer
    x = 31,447,508.80

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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.