Home / 281,731,990.60-422,597,985.90-77,259,737.80

Finding the Fourth Proportional to 281,731,990.60, 422,597,985.90 and 77,259,737.80

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Solution

The fourth proportional to 281,731,990.60, 422,597,985.90 and 77,259,737.80 is: 115,889,606.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,731,990.60 : 422,597,985.90 = 77,259,737.80 : x
  2. Step 2: Convert to fraction form
    281,731,990.60/422,597,985.90 = 77,259,737.80/x
  3. Step 3: Cross multiply
    281,731,990.60x = 422,597,985.90 × 77,259,737.80
  4. Step 4: Simplify right side
    281,731,990.60x = 32,649,809,585,442,092
  5. Step 5: Solve for x
    x = 32,649,809,585,442,092/281,731,990.60
  6. Step 6: Final answer
    x = 115,889,606.70

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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.