Home / 403,079,877,861.97-556,250,210,173.40-217,681,568,992.88

Finding the Fourth Proportional to 403,079,877,861.97, 556,250,210,173.40 and 217,681,568,992.88

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Solution

The fourth proportional to 403,079,877,861.97, 556,250,210,173.40 and 217,681,568,992.88 is: 300,400,553,720.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,079,877,861.97 : 556,250,210,173.40 = 217,681,568,992.88 : x
  2. Step 2: Convert to fraction form
    403,079,877,861.97/556,250,210,173.40 = 217,681,568,992.88/x
  3. Step 3: Cross multiply
    403,079,877,861.97x = 556,250,210,173.40 × 217,681,568,992.88
  4. Step 4: Simplify right side
    403,079,877,861.97x = 121,085,418,503,164,982,722,560
  5. Step 5: Solve for x
    x = 121,085,418,503,164,982,722,560/403,079,877,861.97
  6. Step 6: Final answer
    x = 300,400,553,720.10

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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.