Home / 260,672,729.60-391,261,036.80-131,426,278.40

Finding the Fourth Proportional to 260,672,729.60, 391,261,036.80 and 131,426,278.40

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Solution

The fourth proportional to 260,672,729.60, 391,261,036.80 and 131,426,278.40 is: 197,266,442.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,672,729.60 : 391,261,036.80 = 131,426,278.40 : x
  2. Step 2: Convert to fraction form
    260,672,729.60/391,261,036.80 = 131,426,278.40/x
  3. Step 3: Cross multiply
    260,672,729.60x = 391,261,036.80 × 131,426,278.40
  4. Step 4: Simplify right side
    260,672,729.60x = 51,421,981,949,549,448
  5. Step 5: Solve for x
    x = 51,421,981,949,549,448/260,672,729.60
  6. Step 6: Final answer
    x = 197,266,442.21

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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.