Home / 20,643,451.82-28,445,986.68-15,968,849.98

Finding the Fourth Proportional to 20,643,451.82, 28,445,986.68 and 15,968,849.98

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Solution

The fourth proportional to 20,643,451.82, 28,445,986.68 and 15,968,849.98 is: 22,004,541.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,643,451.82 : 28,445,986.68 = 15,968,849.98 : x
  2. Step 2: Convert to fraction form
    20,643,451.82/28,445,986.68 = 15,968,849.98/x
  3. Step 3: Cross multiply
    20,643,451.82x = 28,445,986.68 × 15,968,849.98
  4. Step 4: Simplify right side
    20,643,451.82x = 454,249,693,825,998.25
  5. Step 5: Solve for x
    x = 454,249,693,825,998.25/20,643,451.82
  6. Step 6: Final answer
    x = 22,004,541.58

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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.