Home / 7,165,348.81-9,888,113.32-3,902,218

Finding the Fourth Proportional to 7,165,348.81, 9,888,113.32 and 3,902,218

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Solution

The fourth proportional to 7,165,348.81, 9,888,113.32 and 3,902,218 is: 5,385,023.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,165,348.81 : 9,888,113.32 = 3,902,218 : x
  2. Step 2: Convert to fraction form
    7,165,348.81/9,888,113.32 = 3,902,218/x
  3. Step 3: Cross multiply
    7,165,348.81x = 9,888,113.32 × 3,902,218
  4. Step 4: Simplify right side
    7,165,348.81x = 38,585,573,783,343.76
  5. Step 5: Solve for x
    x = 38,585,573,783,343.76/7,165,348.81
  6. Step 6: Final answer
    x = 5,385,023.79

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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.