Home / 86,150,109.20-118,931,052.32-66,526,945.52

Finding the Fourth Proportional to 86,150,109.20, 118,931,052.32 and 66,526,945.52

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Solution

The fourth proportional to 86,150,109.20, 118,931,052.32 and 66,526,945.52 is: 91,841,086.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,150,109.20 : 118,931,052.32 = 66,526,945.52 : x
  2. Step 2: Convert to fraction form
    86,150,109.20/118,931,052.32 = 66,526,945.52/x
  3. Step 3: Cross multiply
    86,150,109.20x = 118,931,052.32 × 66,526,945.52
  4. Step 4: Simplify right side
    86,150,109.20x = 7,912,119,638,792,555
  5. Step 5: Solve for x
    x = 7,912,119,638,792,555/86,150,109.20
  6. Step 6: Final answer
    x = 91,841,086.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.