Home / 7,928,299.84-10,942,587.12-5,170,198.72

Finding the Fourth Proportional to 7,928,299.84, 10,942,587.12 and 5,170,198.72

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Solution

The fourth proportional to 7,928,299.84, 10,942,587.12 and 5,170,198.72 is: 7,135,874.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,928,299.84 : 10,942,587.12 = 5,170,198.72 : x
  2. Step 2: Convert to fraction form
    7,928,299.84/10,942,587.12 = 5,170,198.72/x
  3. Step 3: Cross multiply
    7,928,299.84x = 10,942,587.12 × 5,170,198.72
  4. Step 4: Simplify right side
    7,928,299.84x = 56,575,349,921,312.48
  5. Step 5: Solve for x
    x = 56,575,349,921,312.48/7,928,299.84
  6. Step 6: Final answer
    x = 7,135,874.15

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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.