Home / 80,161,159.20-120,241,738.80-61,029,283.20

Finding the Fourth Proportional to 80,161,159.20, 120,241,738.80 and 61,029,283.20

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Solution

The fourth proportional to 80,161,159.20, 120,241,738.80 and 61,029,283.20 is: 91,543,924.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,161,159.20 : 120,241,738.80 = 61,029,283.20 : x
  2. Step 2: Convert to fraction form
    80,161,159.20/120,241,738.80 = 61,029,283.20/x
  3. Step 3: Cross multiply
    80,161,159.20x = 120,241,738.80 × 61,029,283.20
  4. Step 4: Simplify right side
    80,161,159.20x = 7,338,267,129,685,628
  5. Step 5: Solve for x
    x = 7,338,267,129,685,628/80,161,159.20
  6. Step 6: Final answer
    x = 91,543,924.80

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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.