Home / 7,656,841.70-10,565,965.45-4,218,890.34

Finding the Fourth Proportional to 7,656,841.70, 10,565,965.45 and 4,218,890.34

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Solution

The fourth proportional to 7,656,841.70, 10,565,965.45 and 4,218,890.34 is: 5,821,806.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,656,841.70 : 10,565,965.45 = 4,218,890.34 : x
  2. Step 2: Convert to fraction form
    7,656,841.70/10,565,965.45 = 4,218,890.34/x
  3. Step 3: Cross multiply
    7,656,841.70x = 10,565,965.45 × 4,218,890.34
  4. Step 4: Simplify right side
    7,656,841.70x = 44,576,649,569,778.75
  5. Step 5: Solve for x
    x = 44,576,649,569,778.75/7,656,841.70
  6. Step 6: Final answer
    x = 5,821,806.34

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Double scale
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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.