Home / 21,780,067.20-32,670,100.80-16,678,233.60

Finding the Fourth Proportional to 21,780,067.20, 32,670,100.80 and 16,678,233.60

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Solution

The fourth proportional to 21,780,067.20, 32,670,100.80 and 16,678,233.60 is: 25,017,350.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,780,067.20 : 32,670,100.80 = 16,678,233.60 : x
  2. Step 2: Convert to fraction form
    21,780,067.20/32,670,100.80 = 16,678,233.60/x
  3. Step 3: Cross multiply
    21,780,067.20x = 32,670,100.80 × 16,678,233.60
  4. Step 4: Simplify right side
    21,780,067.20x = 544,879,572,877,946.88
  5. Step 5: Solve for x
    x = 544,879,572,877,946.88/21,780,067.20
  6. Step 6: Final answer
    x = 25,017,350.40

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1.5x scale

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.