Home / 185,791,128.56-256,013,965.76-143,719,712.08

Finding the Fourth Proportional to 185,791,128.56, 256,013,965.76 and 143,719,712.08

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Solution

The fourth proportional to 185,791,128.56, 256,013,965.76 and 143,719,712.08 is: 198,040,959.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,791,128.56 : 256,013,965.76 = 143,719,712.08 : x
  2. Step 2: Convert to fraction form
    185,791,128.56/256,013,965.76 = 143,719,712.08/x
  3. Step 3: Cross multiply
    185,791,128.56x = 256,013,965.76 × 143,719,712.08
  4. Step 4: Simplify right side
    185,791,128.56x = 36,794,253,447,486,184
  5. Step 5: Solve for x
    x = 36,794,253,447,486,184/185,791,128.56
  6. Step 6: Final answer
    x = 198,040,959.94

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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.