Home / 106,287,947.20-159,431,920.80-80,589,822.40

Finding the Fourth Proportional to 106,287,947.20, 159,431,920.80 and 80,589,822.40

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Solution

The fourth proportional to 106,287,947.20, 159,431,920.80 and 80,589,822.40 is: 120,884,733.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,287,947.20 : 159,431,920.80 = 80,589,822.40 : x
  2. Step 2: Convert to fraction form
    106,287,947.20/159,431,920.80 = 80,589,822.40/x
  3. Step 3: Cross multiply
    106,287,947.20x = 159,431,920.80 × 80,589,822.40
  4. Step 4: Simplify right side
    106,287,947.20x = 12,848,590,182,162,868
  5. Step 5: Solve for x
    x = 12,848,590,182,162,868/106,287,947.20
  6. Step 6: Final answer
    x = 120,884,733.60

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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.