Home / 730,741,685.70-1,008,436,612.56-396,225,492.15

Finding the Fourth Proportional to 730,741,685.70, 1,008,436,612.56 and 396,225,492.15

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Solution

The fourth proportional to 730,741,685.70, 1,008,436,612.56 and 396,225,492.15 is: 546,798,274.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,741,685.70 : 1,008,436,612.56 = 396,225,492.15 : x
  2. Step 2: Convert to fraction form
    730,741,685.70/1,008,436,612.56 = 396,225,492.15/x
  3. Step 3: Cross multiply
    730,741,685.70x = 1,008,436,612.56 × 396,225,492.15
  4. Step 4: Simplify right side
    730,741,685.70x = 399,568,293,113,664,832
  5. Step 5: Solve for x
    x = 399,568,293,113,664,832/730,741,685.70
  6. Step 6: Final answer
    x = 546,798,274.87

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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.