Home / 159,129,007.80-238,693,511.70-120,865,255.80

Finding the Fourth Proportional to 159,129,007.80, 238,693,511.70 and 120,865,255.80

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Solution

The fourth proportional to 159,129,007.80, 238,693,511.70 and 120,865,255.80 is: 181,297,883.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,129,007.80 : 238,693,511.70 = 120,865,255.80 : x
  2. Step 2: Convert to fraction form
    159,129,007.80/238,693,511.70 = 120,865,255.80/x
  3. Step 3: Cross multiply
    159,129,007.80x = 238,693,511.70 × 120,865,255.80
  4. Step 4: Simplify right side
    159,129,007.80x = 28,849,752,349,420,792
  5. Step 5: Solve for x
    x = 28,849,752,349,420,792/159,129,007.80
  6. Step 6: Final answer
    x = 181,297,883.70

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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.