Home / 12,581,368.68-18,868,932.90-5,392,087.32

Finding the Fourth Proportional to 12,581,368.68, 18,868,932.90 and 5,392,087.32

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Solution

The fourth proportional to 12,581,368.68, 18,868,932.90 and 5,392,087.32 is: 8,086,793.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,581,368.68 : 18,868,932.90 = 5,392,087.32 : x
  2. Step 2: Convert to fraction form
    12,581,368.68/18,868,932.90 = 5,392,087.32/x
  3. Step 3: Cross multiply
    12,581,368.68x = 18,868,932.90 × 5,392,087.32
  4. Step 4: Simplify right side
    12,581,368.68x = 101,742,933,832,020.83
  5. Step 5: Solve for x
    x = 101,742,933,832,020.83/12,581,368.68
  6. Step 6: Final answer
    x = 8,086,793.77

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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.