Home / 131,327,228.60-196,990,842.90-40,439,007.80

Finding the Fourth Proportional to 131,327,228.60, 196,990,842.90 and 40,439,007.80

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Solution

The fourth proportional to 131,327,228.60, 196,990,842.90 and 40,439,007.80 is: 60,658,511.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,327,228.60 : 196,990,842.90 = 40,439,007.80 : x
  2. Step 2: Convert to fraction form
    131,327,228.60/196,990,842.90 = 40,439,007.80/x
  3. Step 3: Cross multiply
    131,327,228.60x = 196,990,842.90 × 40,439,007.80
  4. Step 4: Simplify right side
    131,327,228.60x = 7,966,114,232,561,674
  5. Step 5: Solve for x
    x = 7,966,114,232,561,674/131,327,228.60
  6. Step 6: Final answer
    x = 60,658,511.70

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1.5x scale

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.