Home / 2,128,855,647.90-2,937,789,528.75-1,189,072,004.70

Finding the Fourth Proportional to 2,128,855,647.90, 2,937,789,528.75 and 1,189,072,004.70

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Solution

The fourth proportional to 2,128,855,647.90, 2,937,789,528.75 and 1,189,072,004.70 is: 1,640,901,903.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128,855,647.90 : 2,937,789,528.75 = 1,189,072,004.70 : x
  2. Step 2: Convert to fraction form
    2,128,855,647.90/2,937,789,528.75 = 1,189,072,004.70/x
  3. Step 3: Cross multiply
    2,128,855,647.90x = 2,937,789,528.75 × 1,189,072,004.70
  4. Step 4: Simplify right side
    2,128,855,647.90x = 3,493,243,284,337,431,040
  5. Step 5: Solve for x
    x = 3,493,243,284,337,431,040/2,128,855,647.90
  6. Step 6: Final answer
    x = 1,640,901,903.23

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Double scale
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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.