Home / 110,638,020.80-165,957,031.20-72,417,425.60

Finding the Fourth Proportional to 110,638,020.80, 165,957,031.20 and 72,417,425.60

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Solution

The fourth proportional to 110,638,020.80, 165,957,031.20 and 72,417,425.60 is: 108,626,138.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,638,020.80 : 165,957,031.20 = 72,417,425.60 : x
  2. Step 2: Convert to fraction form
    110,638,020.80/165,957,031.20 = 72,417,425.60/x
  3. Step 3: Cross multiply
    110,638,020.80x = 165,957,031.20 × 72,417,425.60
  4. Step 4: Simplify right side
    110,638,020.80x = 12,018,180,959,722,876
  5. Step 5: Solve for x
    x = 12,018,180,959,722,876/110,638,020.80
  6. Step 6: Final answer
    x = 108,626,138.40

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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.