Home / 15,665,988.08-23,493,659.64-5,428,459.28

Finding the Fourth Proportional to 15,665,988.08, 23,493,659.64 and 5,428,459.28

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Solution

The fourth proportional to 15,665,988.08, 23,493,659.64 and 5,428,459.28 is: 8,140,844.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,665,988.08 : 23,493,659.64 = 5,428,459.28 : x
  2. Step 2: Convert to fraction form
    15,665,988.08/23,493,659.64 = 5,428,459.28/x
  3. Step 3: Cross multiply
    15,665,988.08x = 23,493,659.64 × 5,428,459.28
  4. Step 4: Simplify right side
    15,665,988.08x = 127,534,374,693,919.47
  5. Step 5: Solve for x
    x = 127,534,374,693,919.47/15,665,988.08
  6. Step 6: Final answer
    x = 8,140,844.61

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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.