Home / 20,353,538.16-30,530,151.72-5,207,445.36

Finding the Fourth Proportional to 20,353,538.16, 30,530,151.72 and 5,207,445.36

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Solution

The fourth proportional to 20,353,538.16, 30,530,151.72 and 5,207,445.36 is: 7,811,128.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,353,538.16 : 30,530,151.72 = 5,207,445.36 : x
  2. Step 2: Convert to fraction form
    20,353,538.16/30,530,151.72 = 5,207,445.36/x
  3. Step 3: Cross multiply
    20,353,538.16x = 30,530,151.72 × 5,207,445.36
  4. Step 4: Simplify right side
    20,353,538.16x = 158,984,096,914,410.03
  5. Step 5: Solve for x
    x = 158,984,096,914,410.03/20,353,538.16
  6. Step 6: Final answer
    x = 7,811,128.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.