Home / 20,078,232.40-30,180,334.20-19,700,318.80

Finding the Fourth Proportional to 20,078,232.40, 30,180,334.20 and 19,700,318.80

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Solution

The fourth proportional to 20,078,232.40, 30,180,334.20 and 19,700,318.80 is: 29,612,278.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,078,232.40 : 30,180,334.20 = 19,700,318.80 : x
  2. Step 2: Convert to fraction form
    20,078,232.40/30,180,334.20 = 19,700,318.80/x
  3. Step 3: Cross multiply
    20,078,232.40x = 30,180,334.20 × 19,700,318.80
  4. Step 4: Simplify right side
    20,078,232.40x = 594,562,205,230,543
  5. Step 5: Solve for x
    x = 594,562,205,230,543/20,078,232.40
  6. Step 6: Final answer
    x = 29,612,278.28

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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.