Home / 42,531,831.80-63,797,747.70-19,815,025.40

Finding the Fourth Proportional to 42,531,831.80, 63,797,747.70 and 19,815,025.40

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Solution

The fourth proportional to 42,531,831.80, 63,797,747.70 and 19,815,025.40 is: 29,722,538.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,531,831.80 : 63,797,747.70 = 19,815,025.40 : x
  2. Step 2: Convert to fraction form
    42,531,831.80/63,797,747.70 = 19,815,025.40/x
  3. Step 3: Cross multiply
    42,531,831.80x = 63,797,747.70 × 19,815,025.40
  4. Step 4: Simplify right side
    42,531,831.80x = 1,264,153,991,138,291.50
  5. Step 5: Solve for x
    x = 1,264,153,991,138,291.50/42,531,831.80
  6. Step 6: Final answer
    x = 29,722,538.10

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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.