Home / 86,933,999.70-130,400,999.55-39,158,255.70

Finding the Fourth Proportional to 86,933,999.70, 130,400,999.55 and 39,158,255.70

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Solution

The fourth proportional to 86,933,999.70, 130,400,999.55 and 39,158,255.70 is: 58,737,383.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,933,999.70 : 130,400,999.55 = 39,158,255.70 : x
  2. Step 2: Convert to fraction form
    86,933,999.70/130,400,999.55 = 39,158,255.70/x
  3. Step 3: Cross multiply
    86,933,999.70x = 130,400,999.55 × 39,158,255.70
  4. Step 4: Simplify right side
    86,933,999.70x = 5,106,275,683,914,485
  5. Step 5: Solve for x
    x = 5,106,275,683,914,485/86,933,999.70
  6. Step 6: Final answer
    x = 58,737,383.55

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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.