Home / 2,528,188,568.58-3,488,821,428.35-1,399,090,397.79

Finding the Fourth Proportional to 2,528,188,568.58, 3,488,821,428.35 and 1,399,090,397.79

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Solution

The fourth proportional to 2,528,188,568.58, 3,488,821,428.35 and 1,399,090,397.79 is: 1,930,701,143.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,528,188,568.58 : 3,488,821,428.35 = 1,399,090,397.79 : x
  2. Step 2: Convert to fraction form
    2,528,188,568.58/3,488,821,428.35 = 1,399,090,397.79/x
  3. Step 3: Cross multiply
    2,528,188,568.58x = 3,488,821,428.35 × 1,399,090,397.79
  4. Step 4: Simplify right side
    2,528,188,568.58x = 4,881,176,560,008,477,696
  5. Step 5: Solve for x
    x = 4,881,176,560,008,477,696/2,528,188,568.58
  6. Step 6: Final answer
    x = 1,930,701,143.37

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Double scale
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1.5x scale

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.