Home / 8,428,607.39-11,631,478.21-4,561,128.55

Finding the Fourth Proportional to 8,428,607.39, 11,631,478.21 and 4,561,128.55

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Solution

The fourth proportional to 8,428,607.39, 11,631,478.21 and 4,561,128.55 is: 6,294,357.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,428,607.39 : 11,631,478.21 = 4,561,128.55 : x
  2. Step 2: Convert to fraction form
    8,428,607.39/11,631,478.21 = 4,561,128.55/x
  3. Step 3: Cross multiply
    8,428,607.39x = 11,631,478.21 × 4,561,128.55
  4. Step 4: Simplify right side
    8,428,607.39x = 53,052,667,301,852.38
  5. Step 5: Solve for x
    x = 53,052,667,301,852.38/8,428,607.39
  6. Step 6: Final answer
    x = 6,294,357.40

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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.