Home / 239,245,535.40-330,159,132.72-129,237,248.40

Finding the Fourth Proportional to 239,245,535.40, 330,159,132.72 and 129,237,248.40

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Solution

The fourth proportional to 239,245,535.40, 330,159,132.72 and 129,237,248.40 is: 178,347,561.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,245,535.40 : 330,159,132.72 = 129,237,248.40 : x
  2. Step 2: Convert to fraction form
    239,245,535.40/330,159,132.72 = 129,237,248.40/x
  3. Step 3: Cross multiply
    239,245,535.40x = 330,159,132.72 × 129,237,248.40
  4. Step 4: Simplify right side
    239,245,535.40x = 42,668,857,846,863,216
  5. Step 5: Solve for x
    x = 42,668,857,846,863,216/239,245,535.40
  6. Step 6: Final answer
    x = 178,347,561.54

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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.