Home / 20,487,085.44-28,272,119.68-11,319,663.04

Finding the Fourth Proportional to 20,487,085.44, 28,272,119.68 and 11,319,663.04

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Solution

The fourth proportional to 20,487,085.44, 28,272,119.68 and 11,319,663.04 is: 15,621,102.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,487,085.44 : 28,272,119.68 = 11,319,663.04 : x
  2. Step 2: Convert to fraction form
    20,487,085.44/28,272,119.68 = 11,319,663.04/x
  3. Step 3: Cross multiply
    20,487,085.44x = 28,272,119.68 × 11,319,663.04
  4. Step 4: Simplify right side
    20,487,085.44x = 320,030,868,204,152.62
  5. Step 5: Solve for x
    x = 320,030,868,204,152.62/20,487,085.44
  6. Step 6: Final answer
    x = 15,621,102.82

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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.