Home / 260,678,781.60-391,270,114.80-131,432,330.40

Finding the Fourth Proportional to 260,678,781.60, 391,270,114.80 and 131,432,330.40

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Solution

The fourth proportional to 260,678,781.60, 391,270,114.80 and 131,432,330.40 is: 197,275,523.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,678,781.60 : 391,270,114.80 = 131,432,330.40 : x
  2. Step 2: Convert to fraction form
    260,678,781.60/391,270,114.80 = 131,432,330.40/x
  3. Step 3: Cross multiply
    260,678,781.60x = 391,270,114.80 × 131,432,330.40
  4. Step 4: Simplify right side
    260,678,781.60x = 51,425,543,004,039,536
  5. Step 5: Solve for x
    x = 51,425,543,004,039,536/260,678,781.60
  6. Step 6: Final answer
    x = 197,275,523.11

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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.