Home / 8,124,462.82-11,205,221.33-7,142,301.91

Finding the Fourth Proportional to 8,124,462.82, 11,205,221.33 and 7,142,301.91

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Solution

The fourth proportional to 8,124,462.82, 11,205,221.33 and 7,142,301.91 is: 9,850,629.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,124,462.82 : 11,205,221.33 = 7,142,301.91 : x
  2. Step 2: Convert to fraction form
    8,124,462.82/11,205,221.33 = 7,142,301.91/x
  3. Step 3: Cross multiply
    8,124,462.82x = 11,205,221.33 × 7,142,301.91
  4. Step 4: Simplify right side
    8,124,462.82x = 80,031,073,671,520.23
  5. Step 5: Solve for x
    x = 80,031,073,671,520.23/8,124,462.82
  6. Step 6: Final answer
    x = 9,850,629.57

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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.