Home / 2,128,855,646.90-2,937,789,527.37-1,189,072,003.70

Finding the Fourth Proportional to 2,128,855,646.90, 2,937,789,527.37 and 1,189,072,003.70

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Solution

The fourth proportional to 2,128,855,646.90, 2,937,789,527.37 and 1,189,072,003.70 is: 1,640,901,901.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128,855,646.90 : 2,937,789,527.37 = 1,189,072,003.70 : x
  2. Step 2: Convert to fraction form
    2,128,855,646.90/2,937,789,527.37 = 1,189,072,003.70/x
  3. Step 3: Cross multiply
    2,128,855,646.90x = 2,937,789,527.37 × 1,189,072,003.70
  4. Step 4: Simplify right side
    2,128,855,646.90x = 3,493,243,279,758,722,048
  5. Step 5: Solve for x
    x = 3,493,243,279,758,722,048/2,128,855,646.90
  6. Step 6: Final answer
    x = 1,640,901,901.85

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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.