Home / 372,265,885.68-558,653,881.32-129,928,789.68

Finding the Fourth Proportional to 372,265,885.68, 558,653,881.32 and 129,928,789.68

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Solution

The fourth proportional to 372,265,885.68, 558,653,881.32 and 129,928,789.68 is: 194,982,203.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,265,885.68 : 558,653,881.32 = 129,928,789.68 : x
  2. Step 2: Convert to fraction form
    372,265,885.68/558,653,881.32 = 129,928,789.68/x
  3. Step 3: Cross multiply
    372,265,885.68x = 558,653,881.32 × 129,928,789.68
  4. Step 4: Simplify right side
    372,265,885.68x = 72,585,222,649,941,968
  5. Step 5: Solve for x
    x = 72,585,222,649,941,968/372,265,885.68
  6. Step 6: Final answer
    x = 194,982,203.43

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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.