Home / 76,608,808.40-114,913,212.60-72,073,845.20

Finding the Fourth Proportional to 76,608,808.40, 114,913,212.60 and 72,073,845.20

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Solution

The fourth proportional to 76,608,808.40, 114,913,212.60 and 72,073,845.20 is: 108,110,767.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,608,808.40 : 114,913,212.60 = 72,073,845.20 : x
  2. Step 2: Convert to fraction form
    76,608,808.40/114,913,212.60 = 72,073,845.20/x
  3. Step 3: Cross multiply
    76,608,808.40x = 114,913,212.60 × 72,073,845.20
  4. Step 4: Simplify right side
    76,608,808.40x = 8,282,237,096,367,089
  5. Step 5: Solve for x
    x = 8,282,237,096,367,089/76,608,808.40
  6. Step 6: Final answer
    x = 108,110,767.80

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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.