Home / 280,685,553.02-420,207,329.66-163,743,338.78

Finding the Fourth Proportional to 280,685,553.02, 420,207,329.66 and 163,743,338.78

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Solution

The fourth proportional to 280,685,553.02, 420,207,329.66 and 163,743,338.78 is: 245,136,062.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,685,553.02 : 420,207,329.66 = 163,743,338.78 : x
  2. Step 2: Convert to fraction form
    280,685,553.02/420,207,329.66 = 163,743,338.78/x
  3. Step 3: Cross multiply
    280,685,553.02x = 420,207,329.66 × 163,743,338.78
  4. Step 4: Simplify right side
    280,685,553.02x = 68,806,151,138,356,528
  5. Step 5: Solve for x
    x = 68,806,151,138,356,528/280,685,553.02
  6. Step 6: Final answer
    x = 245,136,062.04

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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.