Home / 1,909,691,934.30-2,864,537,901.45-1,819,293,820.20

Finding the Fourth Proportional to 1,909,691,934.30, 2,864,537,901.45 and 1,819,293,820.20

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Solution

The fourth proportional to 1,909,691,934.30, 2,864,537,901.45 and 1,819,293,820.20 is: 2,728,940,730.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,909,691,934.30 : 2,864,537,901.45 = 1,819,293,820.20 : x
  2. Step 2: Convert to fraction form
    1,909,691,934.30/2,864,537,901.45 = 1,819,293,820.20/x
  3. Step 3: Cross multiply
    1,909,691,934.30x = 2,864,537,901.45 × 1,819,293,820.20
  4. Step 4: Simplify right side
    1,909,691,934.30x = 5,211,436,101,836,661,760
  5. Step 5: Solve for x
    x = 5,211,436,101,836,661,760/1,909,691,934.30
  6. Step 6: Final answer
    x = 2,728,940,730.30

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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.