Home / 5,381,390.66-7,433,407.94-3,988,775.43

Finding the Fourth Proportional to 5,381,390.66, 7,433,407.94 and 3,988,775.43

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Solution

The fourth proportional to 5,381,390.66, 7,433,407.94 and 3,988,775.43 is: 5,509,764.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,381,390.66 : 7,433,407.94 = 3,988,775.43 : x
  2. Step 2: Convert to fraction form
    5,381,390.66/7,433,407.94 = 3,988,775.43/x
  3. Step 3: Cross multiply
    5,381,390.66x = 7,433,407.94 × 3,988,775.43
  4. Step 4: Simplify right side
    5,381,390.66x = 29,650,194,962,210.86
  5. Step 5: Solve for x
    x = 29,650,194,962,210.86/5,381,390.66
  6. Step 6: Final answer
    x = 5,509,764.45

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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.