Home / 15,057,040.50-20,778,673.14-8,181,520.74

Finding the Fourth Proportional to 15,057,040.50, 20,778,673.14 and 8,181,520.74

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Solution

The fourth proportional to 15,057,040.50, 20,778,673.14 and 8,181,520.74 is: 11,290,475.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,057,040.50 : 20,778,673.14 = 8,181,520.74 : x
  2. Step 2: Convert to fraction form
    15,057,040.50/20,778,673.14 = 8,181,520.74/x
  3. Step 3: Cross multiply
    15,057,040.50x = 20,778,673.14 × 8,181,520.74
  4. Step 4: Simplify right side
    15,057,040.50x = 170,001,145,244,590.94
  5. Step 5: Solve for x
    x = 170,001,145,244,590.94/15,057,040.50
  6. Step 6: Final answer
    x = 11,290,475.39

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1.5x scale

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.