Home / 253,218,050.46-379,819,989.80-80,705,215.98

Finding the Fourth Proportional to 253,218,050.46, 379,819,989.80 and 80,705,215.98

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Solution

The fourth proportional to 253,218,050.46, 379,819,989.80 and 80,705,215.98 is: 121,055,565.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,218,050.46 : 379,819,989.80 = 80,705,215.98 : x
  2. Step 2: Convert to fraction form
    253,218,050.46/379,819,989.80 = 80,705,215.98/x
  3. Step 3: Cross multiply
    253,218,050.46x = 379,819,989.80 × 80,705,215.98
  4. Step 4: Simplify right side
    253,218,050.46x = 30,653,454,310,330,400
  5. Step 5: Solve for x
    x = 30,653,454,310,330,400/253,218,050.46
  6. Step 6: Final answer
    x = 121,055,565.57

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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.