Home / 80,217,101.60-120,325,652.40-74,796,403.40

Finding the Fourth Proportional to 80,217,101.60, 120,325,652.40 and 74,796,403.40

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Solution

The fourth proportional to 80,217,101.60, 120,325,652.40 and 74,796,403.40 is: 112,194,605.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,217,101.60 : 120,325,652.40 = 74,796,403.40 : x
  2. Step 2: Convert to fraction form
    80,217,101.60/120,325,652.40 = 74,796,403.40/x
  3. Step 3: Cross multiply
    80,217,101.60x = 120,325,652.40 × 74,796,403.40
  4. Step 4: Simplify right side
    80,217,101.60x = 8,999,926,036,278,579
  5. Step 5: Solve for x
    x = 8,999,926,036,278,579/80,217,101.60
  6. Step 6: Final answer
    x = 112,194,605.10

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1.5x scale

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.