Home / 1,151,215,129.56-1,588,681,664.64-622,579,115.28

Finding the Fourth Proportional to 1,151,215,129.56, 1,588,681,664.64 and 622,579,115.28

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Solution

The fourth proportional to 1,151,215,129.56, 1,588,681,664.64 and 622,579,115.28 is: 859,161,767.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,151,215,129.56 : 1,588,681,664.64 = 622,579,115.28 : x
  2. Step 2: Convert to fraction form
    1,151,215,129.56/1,588,681,664.64 = 622,579,115.28/x
  3. Step 3: Cross multiply
    1,151,215,129.56x = 1,588,681,664.64 × 622,579,115.28
  4. Step 4: Simplify right side
    1,151,215,129.56x = 989,080,025,233,128,832
  5. Step 5: Solve for x
    x = 989,080,025,233,128,832/1,151,215,129.56
  6. Step 6: Final answer
    x = 859,161,767.28

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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.