Home / 14,638,221.20-20,201,387.64-8,111,835.92

Finding the Fourth Proportional to 14,638,221.20, 20,201,387.64 and 8,111,835.92

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Solution

The fourth proportional to 14,638,221.20, 20,201,387.64 and 8,111,835.92 is: 11,194,689.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,638,221.20 : 20,201,387.64 = 8,111,835.92 : x
  2. Step 2: Convert to fraction form
    14,638,221.20/20,201,387.64 = 8,111,835.92/x
  3. Step 3: Cross multiply
    14,638,221.20x = 20,201,387.64 × 8,111,835.92
  4. Step 4: Simplify right side
    14,638,221.20x = 163,870,341,891,996.03
  5. Step 5: Solve for x
    x = 163,870,341,891,996.03/14,638,221.20
  6. Step 6: Final answer
    x = 11,194,689.55

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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.