Home / 7,531,890-10,399,013.20-5,786,450.76

Finding the Fourth Proportional to 7,531,890, 10,399,013.20 and 5,786,450.76

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Solution

The fourth proportional to 7,531,890, 10,399,013.20 and 5,786,450.76 is: 7,989,147.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,531,890 : 10,399,013.20 = 5,786,450.76 : x
  2. Step 2: Convert to fraction form
    7,531,890/10,399,013.20 = 5,786,450.76/x
  3. Step 3: Cross multiply
    7,531,890x = 10,399,013.20 × 5,786,450.76
  4. Step 4: Simplify right side
    7,531,890x = 60,173,377,834,390.02
  5. Step 5: Solve for x
    x = 60,173,377,834,390.02/7,531,890
  6. Step 6: Final answer
    x = 7,989,147.19

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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.