Home / 20,539,663.63-28,345,621.35-11,372,306.38

Finding the Fourth Proportional to 20,539,663.63, 28,345,621.35 and 11,372,306.38

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Solution

The fourth proportional to 20,539,663.63, 28,345,621.35 and 11,372,306.38 is: 15,694,273.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,539,663.63 : 28,345,621.35 = 11,372,306.38 : x
  2. Step 2: Convert to fraction form
    20,539,663.63/28,345,621.35 = 11,372,306.38/x
  3. Step 3: Cross multiply
    20,539,663.63x = 28,345,621.35 × 11,372,306.38
  4. Step 4: Simplify right side
    20,539,663.63x = 322,355,090,523,669.25
  5. Step 5: Solve for x
    x = 322,355,090,523,669.25/20,539,663.63
  6. Step 6: Final answer
    x = 15,694,273.11

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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.