Home / 15,057,275.54-20,778,995.01-8,181,778.58

Finding the Fourth Proportional to 15,057,275.54, 20,778,995.01 and 8,181,778.58

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Solution

The fourth proportional to 15,057,275.54, 20,778,995.01 and 8,181,778.58 is: 11,290,829.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,057,275.54 : 20,778,995.01 = 8,181,778.58 : x
  2. Step 2: Convert to fraction form
    15,057,275.54/20,778,995.01 = 8,181,778.58/x
  3. Step 3: Cross multiply
    15,057,275.54x = 20,778,995.01 × 8,181,778.58
  4. Step 4: Simplify right side
    15,057,275.54x = 170,009,136,286,744.91
  5. Step 5: Solve for x
    x = 170,009,136,286,744.91/15,057,275.54
  6. Step 6: Final answer
    x = 11,290,829.86

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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.