Home / 79,825,999.60-119,738,999.40-45,719,297.20

Finding the Fourth Proportional to 79,825,999.60, 119,738,999.40 and 45,719,297.20

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Solution

The fourth proportional to 79,825,999.60, 119,738,999.40 and 45,719,297.20 is: 68,578,945.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,825,999.60 : 119,738,999.40 = 45,719,297.20 : x
  2. Step 2: Convert to fraction form
    79,825,999.60/119,738,999.40 = 45,719,297.20/x
  3. Step 3: Cross multiply
    79,825,999.60x = 119,738,999.40 × 45,719,297.20
  4. Step 4: Simplify right side
    79,825,999.60x = 5,474,382,899,999,222
  5. Step 5: Solve for x
    x = 5,474,382,899,999,222/79,825,999.60
  6. Step 6: Final answer
    x = 68,578,945.80

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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.