Home / 74,600,999.70-111,901,499.55-68,143,991.55

Finding the Fourth Proportional to 74,600,999.70, 111,901,499.55 and 68,143,991.55

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Solution

The fourth proportional to 74,600,999.70, 111,901,499.55 and 68,143,991.55 is: 102,215,987.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,600,999.70 : 111,901,499.55 = 68,143,991.55 : x
  2. Step 2: Convert to fraction form
    74,600,999.70/111,901,499.55 = 68,143,991.55/x
  3. Step 3: Cross multiply
    74,600,999.70x = 111,901,499.55 × 68,143,991.55
  4. Step 4: Simplify right side
    74,600,999.70x = 7,625,414,839,767,528
  5. Step 5: Solve for x
    x = 7,625,414,839,767,528/74,600,999.70
  6. Step 6: Final answer
    x = 102,215,987.33

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1.5x scale

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.