Home / 10,209,729.72-15,300,157.14-5,662,781.88

Finding the Fourth Proportional to 10,209,729.72, 15,300,157.14 and 5,662,781.88

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Solution

The fourth proportional to 10,209,729.72, 15,300,157.14 and 5,662,781.88 is: 8,486,165.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,209,729.72 : 15,300,157.14 = 5,662,781.88 : x
  2. Step 2: Convert to fraction form
    10,209,729.72/15,300,157.14 = 5,662,781.88/x
  3. Step 3: Cross multiply
    10,209,729.72x = 15,300,157.14 × 5,662,781.88
  4. Step 4: Simplify right side
    10,209,729.72x = 86,641,452,613,544.62
  5. Step 5: Solve for x
    x = 86,641,452,613,544.62/10,209,729.72
  6. Step 6: Final answer
    x = 8,486,165.16

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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.