Home / 20,643,451.32-28,445,986.00-15,968,849.49

Finding the Fourth Proportional to 20,643,451.32, 28,445,986.00 and 15,968,849.49

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Solution

The fourth proportional to 20,643,451.32, 28,445,986.00 and 15,968,849.49 is: 22,004,540.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,643,451.32 : 28,445,986.00 = 15,968,849.49 : x
  2. Step 2: Convert to fraction form
    20,643,451.32/28,445,986.00 = 15,968,849.49/x
  3. Step 3: Cross multiply
    20,643,451.32x = 28,445,986.00 × 15,968,849.49
  4. Step 4: Simplify right side
    20,643,451.32x = 454,249,668,806,572.94
  5. Step 5: Solve for x
    x = 454,249,668,806,572.94/20,643,451.32
  6. Step 6: Final answer
    x = 22,004,540.90

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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.