Home / 151,781,695.38-209,458,807.20-82,167,074.01

Finding the Fourth Proportional to 151,781,695.38, 209,458,807.20 and 82,167,074.01

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Solution

The fourth proportional to 151,781,695.38, 209,458,807.20 and 82,167,074.01 is: 113,390,598.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,781,695.38 : 209,458,807.20 = 82,167,074.01 : x
  2. Step 2: Convert to fraction form
    151,781,695.38/209,458,807.20 = 82,167,074.01/x
  3. Step 3: Cross multiply
    151,781,695.38x = 209,458,807.20 × 82,167,074.01
  4. Step 4: Simplify right side
    151,781,695.38x = 17,210,617,313,248,722
  5. Step 5: Solve for x
    x = 17,210,617,313,248,722/151,781,695.38
  6. Step 6: Final answer
    x = 113,390,598.72

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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.