Home / 239,580,373.50-330,620,915.20-129,572,086.38

Finding the Fourth Proportional to 239,580,373.50, 330,620,915.20 and 129,572,086.38

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Solution

The fourth proportional to 239,580,373.50, 330,620,915.20 and 129,572,086.38 is: 178,809,479.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,580,373.50 : 330,620,915.20 = 129,572,086.38 : x
  2. Step 2: Convert to fraction form
    239,580,373.50/330,620,915.20 = 129,572,086.38/x
  3. Step 3: Cross multiply
    239,580,373.50x = 330,620,915.20 × 129,572,086.38
  4. Step 4: Simplify right side
    239,580,373.50x = 42,839,241,783,329,048
  5. Step 5: Solve for x
    x = 42,839,241,783,329,048/239,580,373.50
  6. Step 6: Final answer
    x = 178,809,479.08

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1.5x scale

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.