Home / 80,573,009.85-111,202,528.59-45,293,720.67

Finding the Fourth Proportional to 80,573,009.85, 111,202,528.59 and 45,293,720.67

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Solution

The fourth proportional to 80,573,009.85, 111,202,528.59 and 45,293,720.67 is: 62,511,953.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,573,009.85 : 111,202,528.59 = 45,293,720.67 : x
  2. Step 2: Convert to fraction form
    80,573,009.85/111,202,528.59 = 45,293,720.67/x
  3. Step 3: Cross multiply
    80,573,009.85x = 111,202,528.59 × 45,293,720.67
  4. Step 4: Simplify right side
    80,573,009.85x = 5,036,776,267,753,149
  5. Step 5: Solve for x
    x = 5,036,776,267,753,149/80,573,009.85
  6. Step 6: Final answer
    x = 62,511,953.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.