Home / 290,861,616.80-436,292,425.20-272,945,712.80

Finding the Fourth Proportional to 290,861,616.80, 436,292,425.20 and 272,945,712.80

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Solution

The fourth proportional to 290,861,616.80, 436,292,425.20 and 272,945,712.80 is: 409,418,569.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,861,616.80 : 436,292,425.20 = 272,945,712.80 : x
  2. Step 2: Convert to fraction form
    290,861,616.80/436,292,425.20 = 272,945,712.80/x
  3. Step 3: Cross multiply
    290,861,616.80x = 436,292,425.20 × 272,945,712.80
  4. Step 4: Simplify right side
    290,861,616.80x = 119,084,146,985,454,688
  5. Step 5: Solve for x
    x = 119,084,146,985,454,688/290,861,616.80
  6. Step 6: Final answer
    x = 409,418,569.20

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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.