Home / 1,161,215,150.40-1,602,476,201.07-639,694,382.40

Finding the Fourth Proportional to 1,161,215,150.40, 1,602,476,201.07 and 639,694,382.40

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Solution

The fourth proportional to 1,161,215,150.40, 1,602,476,201.07 and 639,694,382.40 is: 882,777,858.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,161,215,150.40 : 1,602,476,201.07 = 639,694,382.40 : x
  2. Step 2: Convert to fraction form
    1,161,215,150.40/1,602,476,201.07 = 639,694,382.40/x
  3. Step 3: Cross multiply
    1,161,215,150.40x = 1,602,476,201.07 × 639,694,382.40
  4. Step 4: Simplify right side
    1,161,215,150.40x = 1,025,095,023,754,171,776
  5. Step 5: Solve for x
    x = 1,025,095,023,754,171,776/1,161,215,150.40
  6. Step 6: Final answer
    x = 882,777,858.52

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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.