Home / 491,457,894.37-678,207,862.97-268,439,718.13

Finding the Fourth Proportional to 491,457,894.37, 678,207,862.97 and 268,439,718.13

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Solution

The fourth proportional to 491,457,894.37, 678,207,862.97 and 268,439,718.13 is: 370,444,609.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,457,894.37 : 678,207,862.97 = 268,439,718.13 : x
  2. Step 2: Convert to fraction form
    491,457,894.37/678,207,862.97 = 268,439,718.13/x
  3. Step 3: Cross multiply
    491,457,894.37x = 678,207,862.97 × 268,439,718.13
  4. Step 4: Simplify right side
    491,457,894.37x = 182,057,927,567,874,272
  5. Step 5: Solve for x
    x = 182,057,927,567,874,272/491,457,894.37
  6. Step 6: Final answer
    x = 370,444,609.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.