Home / 86,907,805.20-130,361,707.80-39,132,061.20

Finding the Fourth Proportional to 86,907,805.20, 130,361,707.80 and 39,132,061.20

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Solution

The fourth proportional to 86,907,805.20, 130,361,707.80 and 39,132,061.20 is: 58,698,091.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,907,805.20 : 130,361,707.80 = 39,132,061.20 : x
  2. Step 2: Convert to fraction form
    86,907,805.20/130,361,707.80 = 39,132,061.20/x
  3. Step 3: Cross multiply
    86,907,805.20x = 130,361,707.80 × 39,132,061.20
  4. Step 4: Simplify right side
    86,907,805.20x = 5,101,322,327,766,118
  5. Step 5: Solve for x
    x = 5,101,322,327,766,118/86,907,805.20
  6. Step 6: Final answer
    x = 58,698,091.80

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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.