Home / 239,654,056.72-330,721,877.48-129,645,739.28

Finding the Fourth Proportional to 239,654,056.72, 330,721,877.48 and 129,645,739.28

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Solution

The fourth proportional to 239,654,056.72, 330,721,877.48 and 129,645,739.28 is: 178,910,730.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,654,056.72 : 330,721,877.48 = 129,645,739.28 : x
  2. Step 2: Convert to fraction form
    239,654,056.72/330,721,877.48 = 129,645,739.28/x
  3. Step 3: Cross multiply
    239,654,056.72x = 330,721,877.48 × 129,645,739.28
  4. Step 4: Simplify right side
    239,654,056.72x = 42,876,682,301,964,184
  5. Step 5: Solve for x
    x = 42,876,682,301,964,184/239,654,056.72
  6. Step 6: Final answer
    x = 178,910,730.28

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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.