Home / 239,398,795.32-330,370,188.31-129,390,508.32

Finding the Fourth Proportional to 239,398,795.32, 330,370,188.31 and 129,390,508.32

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Solution

The fourth proportional to 239,398,795.32, 330,370,188.31 and 129,390,508.32 is: 178,558,820.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,398,795.32 : 330,370,188.31 = 129,390,508.32 : x
  2. Step 2: Convert to fraction form
    239,398,795.32/330,370,188.31 = 129,390,508.32/x
  3. Step 3: Cross multiply
    239,398,795.32x = 330,370,188.31 × 129,390,508.32
  4. Step 4: Simplify right side
    239,398,795.32x = 42,746,766,599,205,016
  5. Step 5: Solve for x
    x = 42,746,766,599,205,016/239,398,795.32
  6. Step 6: Final answer
    x = 178,558,820.82

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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.