Home / 1,605,684,950.35-2,215,665,512.09-891,250,620.05

Finding the Fourth Proportional to 1,605,684,950.35, 2,215,665,512.09 and 891,250,620.05

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Solution

The fourth proportional to 1,605,684,950.35, 2,215,665,512.09 and 891,250,620.05 is: 1,229,826,100.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,605,684,950.35 : 2,215,665,512.09 = 891,250,620.05 : x
  2. Step 2: Convert to fraction form
    1,605,684,950.35/2,215,665,512.09 = 891,250,620.05/x
  3. Step 3: Cross multiply
    1,605,684,950.35x = 2,215,665,512.09 × 891,250,620.05
  4. Step 4: Simplify right side
    1,605,684,950.35x = 1,974,713,261,470,621,952
  5. Step 5: Solve for x
    x = 1,974,713,261,470,621,952/1,605,684,950.35
  6. Step 6: Final answer
    x = 1,229,826,100.72

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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.