Home / 1,196,117,919.78-1,794,169,350.92-643,680,571.61

Finding the Fourth Proportional to 1,196,117,919.78, 1,794,169,350.92 and 643,680,571.61

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Solution

The fourth proportional to 1,196,117,919.78, 1,794,169,350.92 and 643,680,571.61 is: 965,516,805.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,196,117,919.78 : 1,794,169,350.92 = 643,680,571.61 : x
  2. Step 2: Convert to fraction form
    1,196,117,919.78/1,794,169,350.92 = 643,680,571.61/x
  3. Step 3: Cross multiply
    1,196,117,919.78x = 1,794,169,350.92 × 643,680,571.61
  4. Step 4: Simplify right side
    1,196,117,919.78x = 1,154,871,953,353,138,944
  5. Step 5: Solve for x
    x = 1,154,871,953,353,138,944/1,196,117,919.78
  6. Step 6: Final answer
    x = 965,516,805.87

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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.