Home / 80,905,911.60-121,358,867.40-32,406,999.60

Finding the Fourth Proportional to 80,905,911.60, 121,358,867.40 and 32,406,999.60

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Solution

The fourth proportional to 80,905,911.60, 121,358,867.40 and 32,406,999.60 is: 48,610,499.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,905,911.60 : 121,358,867.40 = 32,406,999.60 : x
  2. Step 2: Convert to fraction form
    80,905,911.60/121,358,867.40 = 32,406,999.60/x
  3. Step 3: Cross multiply
    80,905,911.60x = 121,358,867.40 × 32,406,999.60
  4. Step 4: Simplify right side
    80,905,911.60x = 3,932,876,767,288,253.50
  5. Step 5: Solve for x
    x = 3,932,876,767,288,253.50/80,905,911.60
  6. Step 6: Final answer
    x = 48,610,499.40

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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.