Home / 84,015,998.40-125,974,231.20-43,705,214.40

Finding the Fourth Proportional to 84,015,998.40, 125,974,231.20 and 43,705,214.40

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Solution

The fourth proportional to 84,015,998.40, 125,974,231.20 and 43,705,214.40 is: 65,531,933.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,015,998.40 : 125,974,231.20 = 43,705,214.40 : x
  2. Step 2: Convert to fraction form
    84,015,998.40/125,974,231.20 = 43,705,214.40/x
  3. Step 3: Cross multiply
    84,015,998.40x = 125,974,231.20 × 43,705,214.40
  4. Step 4: Simplify right side
    84,015,998.40x = 5,505,730,783,471,169
  5. Step 5: Solve for x
    x = 5,505,730,783,471,169/84,015,998.40
  6. Step 6: Final answer
    x = 65,531,933.06

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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.