Home / 80,751,330.80-121,126,996.20-74,515,756.40

Finding the Fourth Proportional to 80,751,330.80, 121,126,996.20 and 74,515,756.40

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Solution

The fourth proportional to 80,751,330.80, 121,126,996.20 and 74,515,756.40 is: 111,773,634.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,751,330.80 : 121,126,996.20 = 74,515,756.40 : x
  2. Step 2: Convert to fraction form
    80,751,330.80/121,126,996.20 = 74,515,756.40/x
  3. Step 3: Cross multiply
    80,751,330.80x = 121,126,996.20 × 74,515,756.40
  4. Step 4: Simplify right side
    80,751,330.80x = 9,025,869,742,302,926
  5. Step 5: Solve for x
    x = 9,025,869,742,302,926/80,751,330.80
  6. Step 6: Final answer
    x = 111,773,634.60

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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.