Home / 71,869,328.40-107,803,992.60-39,508,726.80

Finding the Fourth Proportional to 71,869,328.40, 107,803,992.60 and 39,508,726.80

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Solution

The fourth proportional to 71,869,328.40, 107,803,992.60 and 39,508,726.80 is: 59,263,090.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,869,328.40 : 107,803,992.60 = 39,508,726.80 : x
  2. Step 2: Convert to fraction form
    71,869,328.40/107,803,992.60 = 39,508,726.80/x
  3. Step 3: Cross multiply
    71,869,328.40x = 107,803,992.60 × 39,508,726.80
  4. Step 4: Simplify right side
    71,869,328.40x = 4,259,198,491,582,621
  5. Step 5: Solve for x
    x = 4,259,198,491,582,621/71,869,328.40
  6. Step 6: Final answer
    x = 59,263,090.20

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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.