Home / 38,345,719.68-52,916,824.08-20,942,069.76

Finding the Fourth Proportional to 38,345,719.68, 52,916,824.08 and 20,942,069.76

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Solution

The fourth proportional to 38,345,719.68, 52,916,824.08 and 20,942,069.76 is: 28,899,909.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,345,719.68 : 52,916,824.08 = 20,942,069.76 : x
  2. Step 2: Convert to fraction form
    38,345,719.68/52,916,824.08 = 20,942,069.76/x
  3. Step 3: Cross multiply
    38,345,719.68x = 52,916,824.08 × 20,942,069.76
  4. Step 4: Simplify right side
    38,345,719.68x = 1,108,187,821,361,007.88
  5. Step 5: Solve for x
    x = 1,108,187,821,361,007.88/38,345,719.68
  6. Step 6: Final answer
    x = 28,899,909.31

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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.