Home / 15,157,457.76-20,917,573.20-8,282,385.12

Finding the Fourth Proportional to 15,157,457.76, 20,917,573.20 and 8,282,385.12

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Solution

The fourth proportional to 15,157,457.76, 20,917,573.20 and 8,282,385.12 is: 11,429,845.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,157,457.76 : 20,917,573.20 = 8,282,385.12 : x
  2. Step 2: Convert to fraction form
    15,157,457.76/20,917,573.20 = 8,282,385.12/x
  3. Step 3: Cross multiply
    15,157,457.76x = 20,917,573.20 × 8,282,385.12
  4. Step 4: Simplify right side
    15,157,457.76x = 173,247,397,018,190.78
  5. Step 5: Solve for x
    x = 173,247,397,018,190.78/15,157,457.76
  6. Step 6: Final answer
    x = 11,429,845.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.