Home / 145,173,233.60-217,778,512.80-72,427,198.40

Finding the Fourth Proportional to 145,173,233.60, 217,778,512.80 and 72,427,198.40

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Solution

The fourth proportional to 145,173,233.60, 217,778,512.80 and 72,427,198.40 is: 108,650,108.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,173,233.60 : 217,778,512.80 = 72,427,198.40 : x
  2. Step 2: Convert to fraction form
    145,173,233.60/217,778,512.80 = 72,427,198.40/x
  3. Step 3: Cross multiply
    145,173,233.60x = 217,778,512.80 × 72,427,198.40
  4. Step 4: Simplify right side
    145,173,233.60x = 15,773,087,553,822,542
  5. Step 5: Solve for x
    x = 15,773,087,553,822,542/145,173,233.60
  6. Step 6: Final answer
    x = 108,650,108.31

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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.