Home / 20,334,373.60-30,491,937.60-11,817,320.80

Finding the Fourth Proportional to 20,334,373.60, 30,491,937.60 and 11,817,320.80

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Solution

The fourth proportional to 20,334,373.60, 30,491,937.60 and 11,817,320.80 is: 17,720,388.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,334,373.60 : 30,491,937.60 = 11,817,320.80 : x
  2. Step 2: Convert to fraction form
    20,334,373.60/30,491,937.60 = 11,817,320.80/x
  3. Step 3: Cross multiply
    20,334,373.60x = 30,491,937.60 × 11,817,320.80
  4. Step 4: Simplify right side
    20,334,373.60x = 360,333,008,432,782.12
  5. Step 5: Solve for x
    x = 360,333,008,432,782.12/20,334,373.60
  6. Step 6: Final answer
    x = 17,720,388.91

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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.