Home / 140,466,472.49-193,844,146.76-77,746,926.68

Finding the Fourth Proportional to 140,466,472.49, 193,844,146.76 and 77,746,926.68

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Solution

The fourth proportional to 140,466,472.49, 193,844,146.76 and 77,746,926.68 is: 107,290,988.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,466,472.49 : 193,844,146.76 = 77,746,926.68 : x
  2. Step 2: Convert to fraction form
    140,466,472.49/193,844,146.76 = 77,746,926.68/x
  3. Step 3: Cross multiply
    140,466,472.49x = 193,844,146.76 × 77,746,926.68
  4. Step 4: Simplify right side
    140,466,472.49x = 15,070,786,664,138,924
  5. Step 5: Solve for x
    x = 15,070,786,664,138,924/140,466,472.49
  6. Step 6: Final answer
    x = 107,290,988.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.