Home / 1,197,288,975.09-1,640,258,495.26-1,152,524,961.55

Finding the Fourth Proportional to 1,197,288,975.09, 1,640,258,495.26 and 1,152,524,961.55

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Solution

The fourth proportional to 1,197,288,975.09, 1,640,258,495.26 and 1,152,524,961.55 is: 1,578,932,821.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,197,288,975.09 : 1,640,258,495.26 = 1,152,524,961.55 : x
  2. Step 2: Convert to fraction form
    1,197,288,975.09/1,640,258,495.26 = 1,152,524,961.55/x
  3. Step 3: Cross multiply
    1,197,288,975.09x = 1,640,258,495.26 × 1,152,524,961.55
  4. Step 4: Simplify right side
    1,197,288,975.09x = 1,890,438,859,177,832,704
  5. Step 5: Solve for x
    x = 1,890,438,859,177,832,704/1,197,288,975.09
  6. Step 6: Final answer
    x = 1,578,932,821.16

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Double scale
Find fourth proportional to 1,197,288,976.09, 1,640,258,496.63 and 1,152,524,962.55
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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.