Home / 15,065,799.02-20,789,919.78-8,190,220.94

Finding the Fourth Proportional to 15,065,799.02, 20,789,919.78 and 8,190,220.94

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Solution

The fourth proportional to 15,065,799.02, 20,789,919.78 and 8,190,220.94 is: 11,302,024.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,065,799.02 : 20,789,919.78 = 8,190,220.94 : x
  2. Step 2: Convert to fraction form
    15,065,799.02/20,789,919.78 = 8,190,220.94/x
  3. Step 3: Cross multiply
    15,065,799.02x = 20,789,919.78 × 8,190,220.94
  4. Step 4: Simplify right side
    15,065,799.02x = 170,274,036,323,076.22
  5. Step 5: Solve for x
    x = 170,274,036,323,076.22/15,065,799.02
  6. Step 6: Final answer
    x = 11,302,024.94

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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.