Home / 1,198,149,013.18-1,653,413,921.09-669,517,343.16

Finding the Fourth Proportional to 1,198,149,013.18, 1,653,413,921.09 and 669,517,343.16

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Solution

The fourth proportional to 1,198,149,013.18, 1,653,413,921.09 and 669,517,343.16 is: 923,916,210.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,198,149,013.18 : 1,653,413,921.09 = 669,517,343.16 : x
  2. Step 2: Convert to fraction form
    1,198,149,013.18/1,653,413,921.09 = 669,517,343.16/x
  3. Step 3: Cross multiply
    1,198,149,013.18x = 1,653,413,921.09 × 669,517,343.16
  4. Step 4: Simplify right side
    1,198,149,013.18x = 1,106,989,295,591,934,592
  5. Step 5: Solve for x
    x = 1,106,989,295,591,934,592/1,198,149,013.18
  6. Step 6: Final answer
    x = 923,916,210.27

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Half scale
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Double scale
Find fourth proportional to 1,198,149,014.18, 1,653,413,922.47 and 669,517,344.16
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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.