Home / 120,165,357.40-180,322,044.06-47,369,750.20

Finding the Fourth Proportional to 120,165,357.40, 180,322,044.06 and 47,369,750.20

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Solution

The fourth proportional to 120,165,357.40, 180,322,044.06 and 47,369,750.20 is: 71,083,799.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,165,357.40 : 180,322,044.06 = 47,369,750.20 : x
  2. Step 2: Convert to fraction form
    120,165,357.40/180,322,044.06 = 47,369,750.20/x
  3. Step 3: Cross multiply
    120,165,357.40x = 180,322,044.06 × 47,369,750.20
  4. Step 4: Simplify right side
    120,165,357.40x = 8,541,810,182,675,594
  5. Step 5: Solve for x
    x = 8,541,810,182,675,594/120,165,357.40
  6. Step 6: Final answer
    x = 71,083,799.59

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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.