Home / 140,466,471.42-193,844,145.29-77,746,925.61

Finding the Fourth Proportional to 140,466,471.42, 193,844,145.29 and 77,746,925.61

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Solution

The fourth proportional to 140,466,471.42, 193,844,145.29 and 77,746,925.61 is: 107,290,986.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,466,471.42 : 193,844,145.29 = 77,746,925.61 : x
  2. Step 2: Convert to fraction form
    140,466,471.42/193,844,145.29 = 77,746,925.61/x
  3. Step 3: Cross multiply
    140,466,471.42x = 193,844,145.29 × 77,746,925.61
  4. Step 4: Simplify right side
    140,466,471.42x = 15,070,786,343,553,090
  5. Step 5: Solve for x
    x = 15,070,786,343,553,090/140,466,471.42
  6. Step 6: Final answer
    x = 107,290,986.89

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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.