Home / 1,189,292,401.11-1,783,661,848.18-442,659,800.84

Finding the Fourth Proportional to 1,189,292,401.11, 1,783,661,848.18 and 442,659,800.84

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Solution

The fourth proportional to 1,189,292,401.11, 1,783,661,848.18 and 442,659,800.84 is: 663,886,692.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,292,401.11 : 1,783,661,848.18 = 442,659,800.84 : x
  2. Step 2: Convert to fraction form
    1,189,292,401.11/1,783,661,848.18 = 442,659,800.84/x
  3. Step 3: Cross multiply
    1,189,292,401.11x = 1,783,661,848.18 × 442,659,800.84
  4. Step 4: Simplify right side
    1,189,292,401.11x = 789,555,398,477,205,632
  5. Step 5: Solve for x
    x = 789,555,398,477,205,632/1,189,292,401.11
  6. Step 6: Final answer
    x = 663,886,692.41

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Double scale
Find fourth proportional to 1,189,292,402.11, 1,783,661,849.68 and 442,659,801.84
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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.