Home / 80,295,541-120,182,729.10-43,356,079.72

Finding the Fourth Proportional to 80,295,541, 120,182,729.10 and 43,356,079.72

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Solution

The fourth proportional to 80,295,541, 120,182,729.10 and 43,356,079.72 is: 64,893,416.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,295,541 : 120,182,729.10 = 43,356,079.72 : x
  2. Step 2: Convert to fraction form
    80,295,541/120,182,729.10 = 43,356,079.72/x
  3. Step 3: Cross multiply
    80,295,541x = 120,182,729.10 × 43,356,079.72
  4. Step 4: Simplify right side
    80,295,541x = 5,210,651,983,826,763
  5. Step 5: Solve for x
    x = 5,210,651,983,826,763/80,295,541
  6. Step 6: Final answer
    x = 64,893,416.48

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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.