Home / 287,385,133.68-431,350,233.72-177,879,058.44

Finding the Fourth Proportional to 287,385,133.68, 431,350,233.72 and 177,879,058.44

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Solution

The fourth proportional to 287,385,133.68, 431,350,233.72 and 177,879,058.44 is: 266,987,274.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,385,133.68 : 431,350,233.72 = 177,879,058.44 : x
  2. Step 2: Convert to fraction form
    287,385,133.68/431,350,233.72 = 177,879,058.44/x
  3. Step 3: Cross multiply
    287,385,133.68x = 431,350,233.72 × 177,879,058.44
  4. Step 4: Simplify right side
    287,385,133.68x = 76,728,173,431,987,536
  5. Step 5: Solve for x
    x = 76,728,173,431,987,536/287,385,133.68
  6. Step 6: Final answer
    x = 266,987,274.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.