Home / 1,382,067,821.35-1,897,101,363.78-1,221,926,933.35

Finding the Fourth Proportional to 1,382,067,821.35, 1,897,101,363.78 and 1,221,926,933.35

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Solution

The fourth proportional to 1,382,067,821.35, 1,897,101,363.78 and 1,221,926,933.35 is: 1,677,283,282.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382,067,821.35 : 1,897,101,363.78 = 1,221,926,933.35 : x
  2. Step 2: Convert to fraction form
    1,382,067,821.35/1,897,101,363.78 = 1,221,926,933.35/x
  3. Step 3: Cross multiply
    1,382,067,821.35x = 1,897,101,363.78 × 1,221,926,933.35
  4. Step 4: Simplify right side
    1,382,067,821.35x = 2,318,119,251,697,798,144
  5. Step 5: Solve for x
    x = 2,318,119,251,697,798,144/1,382,067,821.35
  6. Step 6: Final answer
    x = 1,677,283,282.26

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.