Home / 85,611,250.62-128,458,866.33-40,176,739.26

Finding the Fourth Proportional to 85,611,250.62, 128,458,866.33 and 40,176,739.26

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Solution

The fourth proportional to 85,611,250.62, 128,458,866.33 and 40,176,739.26 is: 60,284,814.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,611,250.62 : 128,458,866.33 = 40,176,739.26 : x
  2. Step 2: Convert to fraction form
    85,611,250.62/128,458,866.33 = 40,176,739.26/x
  3. Step 3: Cross multiply
    85,611,250.62x = 128,458,866.33 × 40,176,739.26
  4. Step 4: Simplify right side
    85,611,250.62x = 5,161,058,378,175,603
  5. Step 5: Solve for x
    x = 5,161,058,378,175,603/85,611,250.62
  6. Step 6: Final answer
    x = 60,284,814.68

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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.