Home / 71,015,999.60-106,523,999.40-68,229,081.20

Finding the Fourth Proportional to 71,015,999.60, 106,523,999.40 and 68,229,081.20

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Solution

The fourth proportional to 71,015,999.60, 106,523,999.40 and 68,229,081.20 is: 102,343,621.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,015,999.60 : 106,523,999.40 = 68,229,081.20 : x
  2. Step 2: Convert to fraction form
    71,015,999.60/106,523,999.40 = 68,229,081.20/x
  3. Step 3: Cross multiply
    71,015,999.60x = 106,523,999.40 × 68,229,081.20
  4. Step 4: Simplify right side
    71,015,999.60x = 7,268,034,604,811,352
  5. Step 5: Solve for x
    x = 7,268,034,604,811,352/71,015,999.60
  6. Step 6: Final answer
    x = 102,343,621.80

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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.