Home / 131,121,608.52-180,943,074.90-72,383,012.04

Finding the Fourth Proportional to 131,121,608.52, 180,943,074.90 and 72,383,012.04

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Solution

The fourth proportional to 131,121,608.52, 180,943,074.90 and 72,383,012.04 is: 99,885,937.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,121,608.52 : 180,943,074.90 = 72,383,012.04 : x
  2. Step 2: Convert to fraction form
    131,121,608.52/180,943,074.90 = 72,383,012.04/x
  3. Step 3: Cross multiply
    131,121,608.52x = 180,943,074.90 × 72,383,012.04
  4. Step 4: Simplify right side
    131,121,608.52x = 13,097,204,769,041,324
  5. Step 5: Solve for x
    x = 13,097,204,769,041,324/131,121,608.52
  6. Step 6: Final answer
    x = 99,885,937.31

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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.