Home / 15,057,349.38-20,779,273.62-8,181,831.24

Finding the Fourth Proportional to 15,057,349.38, 20,779,273.62 and 8,181,831.24

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Solution

The fourth proportional to 15,057,349.38, 20,779,273.62 and 8,181,831.24 is: 11,290,998.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,057,349.38 : 20,779,273.62 = 8,181,831.24 : x
  2. Step 2: Convert to fraction form
    15,057,349.38/20,779,273.62 = 8,181,831.24/x
  3. Step 3: Cross multiply
    15,057,349.38x = 20,779,273.62 × 8,181,831.24
  4. Step 4: Simplify right side
    15,057,349.38x = 170,012,510,048,623.91
  5. Step 5: Solve for x
    x = 170,012,510,048,623.91/15,057,349.38
  6. Step 6: Final answer
    x = 11,290,998.55

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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.