Home / 80,970,900.29-121,358,768.54-37,191,245.88

Finding the Fourth Proportional to 80,970,900.29, 121,358,768.54 and 37,191,245.88

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Solution

The fourth proportional to 80,970,900.29, 121,358,768.54 and 37,191,245.88 is: 55,742,047.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,970,900.29 : 121,358,768.54 = 37,191,245.88 : x
  2. Step 2: Convert to fraction form
    80,970,900.29/121,358,768.54 = 37,191,245.88/x
  3. Step 3: Cross multiply
    80,970,900.29x = 121,358,768.54 × 37,191,245.88
  4. Step 4: Simplify right side
    80,970,900.29x = 4,513,483,800,465,149
  5. Step 5: Solve for x
    x = 4,513,483,800,465,149/80,970,900.29
  6. Step 6: Final answer
    x = 55,742,047.88

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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.