Home / 403,590,542.64-556,954,943.28-217,951,552.80

Finding the Fourth Proportional to 403,590,542.64, 556,954,943.28 and 217,951,552.80

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Solution

The fourth proportional to 403,590,542.64, 556,954,943.28 and 217,951,552.80 is: 300,773,139.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,590,542.64 : 556,954,943.28 = 217,951,552.80 : x
  2. Step 2: Convert to fraction form
    403,590,542.64/556,954,943.28 = 217,951,552.80/x
  3. Step 3: Cross multiply
    403,590,542.64x = 556,954,943.28 × 217,951,552.80
  4. Step 4: Simplify right side
    403,590,542.64x = 121,389,194,727,511,920
  5. Step 5: Solve for x
    x = 121,389,194,727,511,920/403,590,542.64
  6. Step 6: Final answer
    x = 300,773,139.86

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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.