Home / 15,202,699.12-20,982,428.76-9,091,799.92

Finding the Fourth Proportional to 15,202,699.12, 20,982,428.76 and 9,091,799.92

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Solution

The fourth proportional to 15,202,699.12, 20,982,428.76 and 9,091,799.92 is: 12,548,300.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,202,699.12 : 20,982,428.76 = 9,091,799.92 : x
  2. Step 2: Convert to fraction form
    15,202,699.12/20,982,428.76 = 9,091,799.92/x
  3. Step 3: Cross multiply
    15,202,699.12x = 20,982,428.76 × 9,091,799.92
  4. Step 4: Simplify right side
    15,202,699.12x = 190,768,044,121,573.72
  5. Step 5: Solve for x
    x = 190,768,044,121,573.72/15,202,699.12
  6. Step 6: Final answer
    x = 12,548,300.97

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1.5x scale

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.