Home / 1,392,191,310.14-1,920,753,326.94-789,297,255.77

Finding the Fourth Proportional to 1,392,191,310.14, 1,920,753,326.94 and 789,297,255.77

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Solution

The fourth proportional to 1,392,191,310.14, 1,920,753,326.94 and 789,297,255.77 is: 1,088,963,362.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,191,310.14 : 1,920,753,326.94 = 789,297,255.77 : x
  2. Step 2: Convert to fraction form
    1,392,191,310.14/1,920,753,326.94 = 789,297,255.77/x
  3. Step 3: Cross multiply
    1,392,191,310.14x = 1,920,753,326.94 × 789,297,255.77
  4. Step 4: Simplify right side
    1,392,191,310.14x = 1,516,045,329,952,236,288
  5. Step 5: Solve for x
    x = 1,516,045,329,952,236,288/1,392,191,310.14
  6. Step 6: Final answer
    x = 1,088,963,362.23

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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.