Home / 86,851,397.96-130,281,286.92-28,557,785.36

Finding the Fourth Proportional to 86,851,397.96, 130,281,286.92 and 28,557,785.36

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Solution

The fourth proportional to 86,851,397.96, 130,281,286.92 and 28,557,785.36 is: 42,838,055.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,851,397.96 : 130,281,286.92 = 28,557,785.36 : x
  2. Step 2: Convert to fraction form
    86,851,397.96/130,281,286.92 = 28,557,785.36/x
  3. Step 3: Cross multiply
    86,851,397.96x = 130,281,286.92 × 28,557,785.36
  4. Step 4: Simplify right side
    86,851,397.96x = 3,720,545,028,285,935.50
  5. Step 5: Solve for x
    x = 3,720,545,028,285,935.50/86,851,397.96
  6. Step 6: Final answer
    x = 42,838,055.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.