Home / 20,180,630.20-30,270,945.30-19,117,748.20

Finding the Fourth Proportional to 20,180,630.20, 30,270,945.30 and 19,117,748.20

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Solution

The fourth proportional to 20,180,630.20, 30,270,945.30 and 19,117,748.20 is: 28,676,622.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,180,630.20 : 30,270,945.30 = 19,117,748.20 : x
  2. Step 2: Convert to fraction form
    20,180,630.20/30,270,945.30 = 19,117,748.20/x
  3. Step 3: Cross multiply
    20,180,630.20x = 30,270,945.30 × 19,117,748.20
  4. Step 4: Simplify right side
    20,180,630.20x = 578,712,310,021,373.50
  5. Step 5: Solve for x
    x = 578,712,310,021,373.50/20,180,630.20
  6. Step 6: Final answer
    x = 28,676,622.30

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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.