Home / 131,379,232.80-197,096,842.80-40,512,007.20

Finding the Fourth Proportional to 131,379,232.80, 197,096,842.80 and 40,512,007.20

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Solution

The fourth proportional to 131,379,232.80, 197,096,842.80 and 40,512,007.20 is: 60,776,642.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,379,232.80 : 197,096,842.80 = 40,512,007.20 : x
  2. Step 2: Convert to fraction form
    131,379,232.80/197,096,842.80 = 40,512,007.20/x
  3. Step 3: Cross multiply
    131,379,232.80x = 197,096,842.80 × 40,512,007.20
  4. Step 4: Simplify right side
    131,379,232.80x = 7,984,788,714,610,869
  5. Step 5: Solve for x
    x = 7,984,788,714,610,869/131,379,232.80
  6. Step 6: Final answer
    x = 60,776,642.89

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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.