Home / 12,281,638.40-18,422,457.60-5,092,422.65

Finding the Fourth Proportional to 12,281,638.40, 18,422,457.60 and 5,092,422.65

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Solution

The fourth proportional to 12,281,638.40, 18,422,457.60 and 5,092,422.65 is: 7,638,633.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,281,638.40 : 18,422,457.60 = 5,092,422.65 : x
  2. Step 2: Convert to fraction form
    12,281,638.40/18,422,457.60 = 5,092,422.65/x
  3. Step 3: Cross multiply
    12,281,638.40x = 18,422,457.60 × 5,092,422.65
  4. Step 4: Simplify right side
    12,281,638.40x = 93,814,940,350,904.66
  5. Step 5: Solve for x
    x = 93,814,940,350,904.66/12,281,638.40
  6. Step 6: Final answer
    x = 7,638,633.98

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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.