Home / 8,991,351.48-12,409,026.60-5,509,001.28

Finding the Fourth Proportional to 8,991,351.48, 12,409,026.60 and 5,509,001.28

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Solution

The fourth proportional to 8,991,351.48, 12,409,026.60 and 5,509,001.28 is: 7,603,010.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,991,351.48 : 12,409,026.60 = 5,509,001.28 : x
  2. Step 2: Convert to fraction form
    8,991,351.48/12,409,026.60 = 5,509,001.28/x
  3. Step 3: Cross multiply
    8,991,351.48x = 12,409,026.60 × 5,509,001.28
  4. Step 4: Simplify right side
    8,991,351.48x = 68,361,343,422,954.05
  5. Step 5: Solve for x
    x = 68,361,343,422,954.05/8,991,351.48
  6. Step 6: Final answer
    x = 7,603,010.91

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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.