Home / 47,847,640.60-71,767,989.20-18,695,998.18

Finding the Fourth Proportional to 47,847,640.60, 71,767,989.20 and 18,695,998.18

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Solution

The fourth proportional to 47,847,640.60, 71,767,989.20 and 18,695,998.18 is: 28,042,640.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,847,640.60 : 71,767,989.20 = 18,695,998.18 : x
  2. Step 2: Convert to fraction form
    47,847,640.60/71,767,989.20 = 18,695,998.18/x
  3. Step 3: Cross multiply
    47,847,640.60x = 71,767,989.20 × 18,695,998.18
  4. Step 4: Simplify right side
    47,847,640.60x = 1,341,774,195,332,779.50
  5. Step 5: Solve for x
    x = 1,341,774,195,332,779.50/47,847,640.60
  6. Step 6: Final answer
    x = 28,042,640.74

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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.