Home / 8,124,442.74-11,205,193.59-7,142,281.83

Finding the Fourth Proportional to 8,124,442.74, 11,205,193.59 and 7,142,281.83

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Solution

The fourth proportional to 8,124,442.74, 11,205,193.59 and 7,142,281.83 is: 9,850,601.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,124,442.74 : 11,205,193.59 = 7,142,281.83 : x
  2. Step 2: Convert to fraction form
    8,124,442.74/11,205,193.59 = 7,142,281.83/x
  3. Step 3: Cross multiply
    8,124,442.74x = 11,205,193.59 × 7,142,281.83
  4. Step 4: Simplify right side
    8,124,442.74x = 80,030,650,579,489.47
  5. Step 5: Solve for x
    x = 80,030,650,579,489.47/8,124,442.74
  6. Step 6: Final answer
    x = 9,850,601.84

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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.