Home / 82,030,854.40-123,046,281.60-68,693,459.20

Finding the Fourth Proportional to 82,030,854.40, 123,046,281.60 and 68,693,459.20

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Solution

The fourth proportional to 82,030,854.40, 123,046,281.60 and 68,693,459.20 is: 103,040,188.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,030,854.40 : 123,046,281.60 = 68,693,459.20 : x
  2. Step 2: Convert to fraction form
    82,030,854.40/123,046,281.60 = 68,693,459.20/x
  3. Step 3: Cross multiply
    82,030,854.40x = 123,046,281.60 × 68,693,459.20
  4. Step 4: Simplify right side
    82,030,854.40x = 8,452,474,724,801,311
  5. Step 5: Solve for x
    x = 8,452,474,724,801,311/82,030,854.40
  6. Step 6: Final answer
    x = 103,040,188.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.