Home / 20,634,412.20-30,878,135.10-17,968,021.80

Finding the Fourth Proportional to 20,634,412.20, 30,878,135.10 and 17,968,021.80

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Solution

The fourth proportional to 20,634,412.20, 30,878,135.10 and 17,968,021.80 is: 26,888,045.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,634,412.20 : 30,878,135.10 = 17,968,021.80 : x
  2. Step 2: Convert to fraction form
    20,634,412.20/30,878,135.10 = 17,968,021.80/x
  3. Step 3: Cross multiply
    20,634,412.20x = 30,878,135.10 × 17,968,021.80
  4. Step 4: Simplify right side
    20,634,412.20x = 554,819,004,620,145.25
  5. Step 5: Solve for x
    x = 554,819,004,620,145.25/20,634,412.20
  6. Step 6: Final answer
    x = 26,888,045.04

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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.