Home / 21,187,340.60-31,781,379.66-5,834,551.40

Finding the Fourth Proportional to 21,187,340.60, 31,781,379.66 and 5,834,551.40

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Solution

The fourth proportional to 21,187,340.60, 31,781,379.66 and 5,834,551.40 is: 8,751,928.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,187,340.60 : 31,781,379.66 = 5,834,551.40 : x
  2. Step 2: Convert to fraction form
    21,187,340.60/31,781,379.66 = 5,834,551.40/x
  3. Step 3: Cross multiply
    21,187,340.60x = 31,781,379.66 × 5,834,551.40
  4. Step 4: Simplify right side
    21,187,340.60x = 185,430,093,001,104.88
  5. Step 5: Solve for x
    x = 185,430,093,001,104.88/21,187,340.60
  6. Step 6: Final answer
    x = 8,751,928.64

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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.