Home / 9,121,401.54-12,587,535.10-4,991,433.58

Finding the Fourth Proportional to 9,121,401.54, 12,587,535.10 and 4,991,433.58

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Solution

The fourth proportional to 9,121,401.54, 12,587,535.10 and 4,991,433.58 is: 6,888,178.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,121,401.54 : 12,587,535.10 = 4,991,433.58 : x
  2. Step 2: Convert to fraction form
    9,121,401.54/12,587,535.10 = 4,991,433.58/x
  3. Step 3: Cross multiply
    9,121,401.54x = 12,587,535.10 × 4,991,433.58
  4. Step 4: Simplify right side
    9,121,401.54x = 62,829,845,387,568.66
  5. Step 5: Solve for x
    x = 62,829,845,387,568.66/9,121,401.54
  6. Step 6: Final answer
    x = 6,888,178.87

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1.5x scale

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.