Home / 72,989,281,581.35-109,515,385,081.33-39,406,236,231.20

Finding the Fourth Proportional to 72,989,281,581.35, 109,515,385,081.33 and 39,406,236,231.20

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Solution

The fourth proportional to 72,989,281,581.35, 109,515,385,081.33 and 39,406,236,231.20 is: 59,126,340,771.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,989,281,581.35 : 109,515,385,081.33 = 39,406,236,231.20 : x
  2. Step 2: Convert to fraction form
    72,989,281,581.35/109,515,385,081.33 = 39,406,236,231.20/x
  3. Step 3: Cross multiply
    72,989,281,581.35x = 109,515,385,081.33 × 39,406,236,231.20
  4. Step 4: Simplify right side
    72,989,281,581.35x = 4,315,589,135,465,178,464,256
  5. Step 5: Solve for x
    x = 4,315,589,135,465,178,464,256/72,989,281,581.35
  6. Step 6: Final answer
    x = 59,126,340,771.77

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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.