Home / 207,987,055.68-287,018,620.92-115,165,565.76

Finding the Fourth Proportional to 207,987,055.68, 287,018,620.92 and 115,165,565.76

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Solution

The fourth proportional to 207,987,055.68, 287,018,620.92 and 115,165,565.76 is: 158,926,533.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,987,055.68 : 287,018,620.92 = 115,165,565.76 : x
  2. Step 2: Convert to fraction form
    207,987,055.68/287,018,620.92 = 115,165,565.76/x
  3. Step 3: Cross multiply
    207,987,055.68x = 287,018,620.92 × 115,165,565.76
  4. Step 4: Simplify right side
    207,987,055.68x = 33,054,661,861,906,776
  5. Step 5: Solve for x
    x = 33,054,661,861,906,776/207,987,055.68
  6. Step 6: Final answer
    x = 158,926,533.93

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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.