Home / 30,003,046.20-45,004,569.30-20,755,972.80

Finding the Fourth Proportional to 30,003,046.20, 45,004,569.30 and 20,755,972.80

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Solution

The fourth proportional to 30,003,046.20, 45,004,569.30 and 20,755,972.80 is: 31,133,959.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,003,046.20 : 45,004,569.30 = 20,755,972.80 : x
  2. Step 2: Convert to fraction form
    30,003,046.20/45,004,569.30 = 20,755,972.80/x
  3. Step 3: Cross multiply
    30,003,046.20x = 45,004,569.30 × 20,755,972.80
  4. Step 4: Simplify right side
    30,003,046.20x = 934,113,616,266,515
  5. Step 5: Solve for x
    x = 934,113,616,266,515/30,003,046.20
  6. Step 6: Final answer
    x = 31,133,959.20

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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.