Home / 20,408,802.53-28,164,186.54-11,116,343.88

Finding the Fourth Proportional to 20,408,802.53, 28,164,186.54 and 11,116,343.88

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Solution

The fourth proportional to 20,408,802.53, 28,164,186.54 and 11,116,343.88 is: 15,340,575.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,408,802.53 : 28,164,186.54 = 11,116,343.88 : x
  2. Step 2: Convert to fraction form
    20,408,802.53/28,164,186.54 = 11,116,343.88/x
  3. Step 3: Cross multiply
    20,408,802.53x = 28,164,186.54 × 11,116,343.88
  4. Step 4: Simplify right side
    20,408,802.53x = 313,082,782,679,107.38
  5. Step 5: Solve for x
    x = 313,082,782,679,107.38/20,408,802.53
  6. Step 6: Final answer
    x = 15,340,575.83

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1.5x scale

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.