Home / 13,650,394.47-18,837,428.89-7,538,691.75

Finding the Fourth Proportional to 13,650,394.47, 18,837,428.89 and 7,538,691.75

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Solution

The fourth proportional to 13,650,394.47, 18,837,428.89 and 7,538,691.75 is: 10,403,330.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,650,394.47 : 18,837,428.89 = 7,538,691.75 : x
  2. Step 2: Convert to fraction form
    13,650,394.47/18,837,428.89 = 7,538,691.75/x
  3. Step 3: Cross multiply
    13,650,394.47x = 18,837,428.89 × 7,538,691.75
  4. Step 4: Simplify right side
    13,650,394.47x = 142,009,569,764,254.66
  5. Step 5: Solve for x
    x = 142,009,569,764,254.66/13,650,394.47
  6. Step 6: Final answer
    x = 10,403,330.84

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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.