Home / 8,124,443.62-11,205,194.80-7,142,282.71

Finding the Fourth Proportional to 8,124,443.62, 11,205,194.80 and 7,142,282.71

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Solution

The fourth proportional to 8,124,443.62, 11,205,194.80 and 7,142,282.71 is: 9,850,603.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,124,443.62 : 11,205,194.80 = 7,142,282.71 : x
  2. Step 2: Convert to fraction form
    8,124,443.62/11,205,194.80 = 7,142,282.71/x
  3. Step 3: Cross multiply
    8,124,443.62x = 11,205,194.80 × 7,142,282.71
  4. Step 4: Simplify right side
    8,124,443.62x = 80,030,669,082,221.91
  5. Step 5: Solve for x
    x = 80,030,669,082,221.91/8,124,443.62
  6. Step 6: Final answer
    x = 9,850,603.05

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Double scale
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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.