Home / 134,534,386.78-185,657,446.65-72,654,719.38

Finding the Fourth Proportional to 134,534,386.78, 185,657,446.65 and 72,654,719.38

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Solution

The fourth proportional to 134,534,386.78, 185,657,446.65 and 72,654,719.38 is: 100,263,508.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,534,386.78 : 185,657,446.65 = 72,654,719.38 : x
  2. Step 2: Convert to fraction form
    134,534,386.78/185,657,446.65 = 72,654,719.38/x
  3. Step 3: Cross multiply
    134,534,386.78x = 185,657,446.65 × 72,654,719.38
  4. Step 4: Simplify right side
    134,534,386.78x = 13,488,889,687,163,070
  5. Step 5: Solve for x
    x = 13,488,889,687,163,070/134,534,386.78
  6. Step 6: Final answer
    x = 100,263,508.91

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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.