Home / 30,157,979.76-41,632,467.12-18,565,480.08

Finding the Fourth Proportional to 30,157,979.76, 41,632,467.12 and 18,565,480.08

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Solution

The fourth proportional to 30,157,979.76, 41,632,467.12 and 18,565,480.08 is: 25,629,261.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,157,979.76 : 41,632,467.12 = 18,565,480.08 : x
  2. Step 2: Convert to fraction form
    30,157,979.76/41,632,467.12 = 18,565,480.08/x
  3. Step 3: Cross multiply
    30,157,979.76x = 41,632,467.12 × 18,565,480.08
  4. Step 4: Simplify right side
    30,157,979.76x = 772,926,738,997,614.88
  5. Step 5: Solve for x
    x = 772,926,738,997,614.88/30,157,979.76
  6. Step 6: Final answer
    x = 25,629,261.15

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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.