Home / 2,859,013,078.70-4,288,519,618.05-788,731,519.10

Finding the Fourth Proportional to 2,859,013,078.70, 4,288,519,618.05 and 788,731,519.10

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Solution

The fourth proportional to 2,859,013,078.70, 4,288,519,618.05 and 788,731,519.10 is: 1,183,097,278.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,859,013,078.70 : 4,288,519,618.05 = 788,731,519.10 : x
  2. Step 2: Convert to fraction form
    2,859,013,078.70/4,288,519,618.05 = 788,731,519.10/x
  3. Step 3: Cross multiply
    2,859,013,078.70x = 4,288,519,618.05 × 788,731,519.10
  4. Step 4: Simplify right side
    2,859,013,078.70x = 3,382,490,593,034,728,448
  5. Step 5: Solve for x
    x = 3,382,490,593,034,728,448/2,859,013,078.70
  6. Step 6: Final answer
    x = 1,183,097,278.65

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.