Home / 30,278,912.40-45,428,866.20-13,251,805.20

Finding the Fourth Proportional to 30,278,912.40, 45,428,866.20 and 13,251,805.20

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Solution

The fourth proportional to 30,278,912.40, 45,428,866.20 and 13,251,805.20 is: 19,882,302.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,278,912.40 : 45,428,866.20 = 13,251,805.20 : x
  2. Step 2: Convert to fraction form
    30,278,912.40/45,428,866.20 = 13,251,805.20/x
  3. Step 3: Cross multiply
    30,278,912.40x = 45,428,866.20 × 13,251,805.20
  4. Step 4: Simplify right side
    30,278,912.40x = 602,014,485,339,264.25
  5. Step 5: Solve for x
    x = 602,014,485,339,264.25/30,278,912.40
  6. Step 6: Final answer
    x = 19,882,302.16

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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.