Home / 48,445,531.80-72,681,128.10-21,140,107.80

Finding the Fourth Proportional to 48,445,531.80, 72,681,128.10 and 21,140,107.80

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Solution

The fourth proportional to 48,445,531.80, 72,681,128.10 and 21,140,107.80 is: 31,715,760.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,445,531.80 : 72,681,128.10 = 21,140,107.80 : x
  2. Step 2: Convert to fraction form
    48,445,531.80/72,681,128.10 = 21,140,107.80/x
  3. Step 3: Cross multiply
    48,445,531.80x = 72,681,128.10 × 21,140,107.80
  4. Step 4: Simplify right side
    48,445,531.80x = 1,536,486,883,059,609
  5. Step 5: Solve for x
    x = 1,536,486,883,059,609/48,445,531.80
  6. Step 6: Final answer
    x = 31,715,760.48

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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.