Home / 2,768,131,211.79-3,820,021,071.71-1,515,068,067.69

Finding the Fourth Proportional to 2,768,131,211.79, 3,820,021,071.71 and 1,515,068,067.69

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Solution

The fourth proportional to 2,768,131,211.79, 3,820,021,071.71 and 1,515,068,067.69 is: 2,090,793,933.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,768,131,211.79 : 3,820,021,071.71 = 1,515,068,067.69 : x
  2. Step 2: Convert to fraction form
    2,768,131,211.79/3,820,021,071.71 = 1,515,068,067.69/x
  3. Step 3: Cross multiply
    2,768,131,211.79x = 3,820,021,071.71 × 1,515,068,067.69
  4. Step 4: Simplify right side
    2,768,131,211.79x = 5,787,591,943,643,176,960
  5. Step 5: Solve for x
    x = 5,787,591,943,643,176,960/2,768,131,211.79
  6. Step 6: Final answer
    x = 2,090,793,933.10

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Double scale
Find fourth proportional to 2,768,131,212.79, 3,820,021,073.09 and 1,515,068,068.69
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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.