Home / 20,412,176.40-30,618,264.60-19,719,334.80

Finding the Fourth Proportional to 20,412,176.40, 30,618,264.60 and 19,719,334.80

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Solution

The fourth proportional to 20,412,176.40, 30,618,264.60 and 19,719,334.80 is: 29,579,002.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,412,176.40 : 30,618,264.60 = 19,719,334.80 : x
  2. Step 2: Convert to fraction form
    20,412,176.40/30,618,264.60 = 19,719,334.80/x
  3. Step 3: Cross multiply
    20,412,176.40x = 30,618,264.60 × 19,719,334.80
  4. Step 4: Simplify right side
    20,412,176.40x = 603,771,810,642,388.12
  5. Step 5: Solve for x
    x = 603,771,810,642,388.12/20,412,176.40
  6. Step 6: Final answer
    x = 29,579,002.20

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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.