Home / 137,309,785.86-189,490,921.31-74,585,864.06

Finding the Fourth Proportional to 137,309,785.86, 189,490,921.31 and 74,585,864.06

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Solution

The fourth proportional to 137,309,785.86, 189,490,921.31 and 74,585,864.06 is: 102,930,348.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,309,785.86 : 189,490,921.31 = 74,585,864.06 : x
  2. Step 2: Convert to fraction form
    137,309,785.86/189,490,921.31 = 74,585,864.06/x
  3. Step 3: Cross multiply
    137,309,785.86x = 189,490,921.31 × 74,585,864.06
  4. Step 4: Simplify right side
    137,309,785.86x = 14,133,344,096,111,436
  5. Step 5: Solve for x
    x = 14,133,344,096,111,436/137,309,785.86
  6. Step 6: Final answer
    x = 102,930,348.39

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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.