Home / 39,139,678.76-54,006,275.31-22,621,340.43

Finding the Fourth Proportional to 39,139,678.76, 54,006,275.31 and 22,621,340.43

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Solution

The fourth proportional to 39,139,678.76, 54,006,275.31 and 22,621,340.43 is: 31,213,703.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,139,678.76 : 54,006,275.31 = 22,621,340.43 : x
  2. Step 2: Convert to fraction form
    39,139,678.76/54,006,275.31 = 22,621,340.43/x
  3. Step 3: Cross multiply
    39,139,678.76x = 54,006,275.31 × 22,621,340.43
  4. Step 4: Simplify right side
    39,139,678.76x = 1,221,694,339,401,728.25
  5. Step 5: Solve for x
    x = 1,221,694,339,401,728.25/39,139,678.76
  6. Step 6: Final answer
    x = 31,213,703.79

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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.