Home / 239,567,890.88-330,604,679.52-129,559,601.60

Finding the Fourth Proportional to 239,567,890.88, 330,604,679.52 and 129,559,601.60

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Solution

The fourth proportional to 239,567,890.88, 330,604,679.52 and 129,559,601.60 is: 178,792,785.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,567,890.88 : 330,604,679.52 = 129,559,601.60 : x
  2. Step 2: Convert to fraction form
    239,567,890.88/330,604,679.52 = 129,559,601.60/x
  3. Step 3: Cross multiply
    239,567,890.88x = 330,604,679.52 × 129,559,601.60
  4. Step 4: Simplify right side
    239,567,890.88x = 42,833,010,565,706,872
  5. Step 5: Solve for x
    x = 42,833,010,565,706,872/239,567,890.88
  6. Step 6: Final answer
    x = 178,792,785.66

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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.