Home / 128,712,930.40-193,074,061.20-37,845,704.80

Finding the Fourth Proportional to 128,712,930.40, 193,074,061.20 and 37,845,704.80

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Solution

The fourth proportional to 128,712,930.40, 193,074,061.20 and 37,845,704.80 is: 56,769,929.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,712,930.40 : 193,074,061.20 = 37,845,704.80 : x
  2. Step 2: Convert to fraction form
    128,712,930.40/193,074,061.20 = 37,845,704.80/x
  3. Step 3: Cross multiply
    128,712,930.40x = 193,074,061.20 × 37,845,704.80
  4. Step 4: Simplify right side
    128,712,930.40x = 7,307,023,924,712,333
  5. Step 5: Solve for x
    x = 7,307,023,924,712,333/128,712,930.40
  6. Step 6: Final answer
    x = 56,769,929.04

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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.