Home / 55,478,989.28-76,566,768-31,958,338.88

Finding the Fourth Proportional to 55,478,989.28, 76,566,768 and 31,958,338.88

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Solution

The fourth proportional to 55,478,989.28, 76,566,768 and 31,958,338.88 is: 44,105,827.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,478,989.28 : 76,566,768 = 31,958,338.88 : x
  2. Step 2: Convert to fraction form
    55,478,989.28/76,566,768 = 31,958,338.88/x
  3. Step 3: Cross multiply
    55,478,989.28x = 76,566,768 × 31,958,338.88
  4. Step 4: Simplify right side
    55,478,989.28x = 2,446,946,718,690,340
  5. Step 5: Solve for x
    x = 2,446,946,718,690,340/55,478,989.28
  6. Step 6: Final answer
    x = 44,105,827.28

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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.