Home / 239,749,505.76-330,854,307.12-129,741,221.76

Finding the Fourth Proportional to 239,749,505.76, 330,854,307.12 and 129,741,221.76

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Solution

The fourth proportional to 239,749,505.76, 330,854,307.12 and 129,741,221.76 is: 179,042,880.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,749,505.76 : 330,854,307.12 = 129,741,221.76 : x
  2. Step 2: Convert to fraction form
    239,749,505.76/330,854,307.12 = 129,741,221.76/x
  3. Step 3: Cross multiply
    239,749,505.76x = 330,854,307.12 × 129,741,221.76
  4. Step 4: Simplify right side
    239,749,505.76x = 42,925,442,030,307,072
  5. Step 5: Solve for x
    x = 42,925,442,030,307,072/239,749,505.76
  6. Step 6: Final answer
    x = 179,042,880.17

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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.