Home / 1,820,578,718.72-2,512,398,634.62-985,203,289.10

Finding the Fourth Proportional to 1,820,578,718.72, 2,512,398,634.62 and 985,203,289.10

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Solution

The fourth proportional to 1,820,578,718.72, 2,512,398,634.62 and 985,203,289.10 is: 1,359,580,540.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,820,578,718.72 : 2,512,398,634.62 = 985,203,289.10 : x
  2. Step 2: Convert to fraction form
    1,820,578,718.72/2,512,398,634.62 = 985,203,289.10/x
  3. Step 3: Cross multiply
    1,820,578,718.72x = 2,512,398,634.62 × 985,203,289.10
  4. Step 4: Simplify right side
    1,820,578,718.72x = 2,475,223,398,357,972,992
  5. Step 5: Solve for x
    x = 2,475,223,398,357,972,992/1,820,578,718.72
  6. Step 6: Final answer
    x = 1,359,580,540.47

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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.