Home / 20,570,566.66-28,387,658.31-11,278,114.22

Finding the Fourth Proportional to 20,570,566.66, 28,387,658.31 and 11,278,114.22

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Solution

The fourth proportional to 20,570,566.66, 28,387,658.31 and 11,278,114.22 is: 15,563,949.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,570,566.66 : 28,387,658.31 = 11,278,114.22 : x
  2. Step 2: Convert to fraction form
    20,570,566.66/28,387,658.31 = 11,278,114.22/x
  3. Step 3: Cross multiply
    20,570,566.66x = 28,387,658.31 × 11,278,114.22
  4. Step 4: Simplify right side
    20,570,566.66x = 320,159,252,887,188.38
  5. Step 5: Solve for x
    x = 320,159,252,887,188.38/20,570,566.66
  6. Step 6: Final answer
    x = 15,563,949.12

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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.