Home / 615,772,828-849,085,563.18-392,400,667

Finding the Fourth Proportional to 615,772,828, 849,085,563.18 and 392,400,667

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Solution

The fourth proportional to 615,772,828, 849,085,563.18 and 392,400,667 is: 541,078,992.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,772,828 : 849,085,563.18 = 392,400,667 : x
  2. Step 2: Convert to fraction form
    615,772,828/849,085,563.18 = 392,400,667/x
  3. Step 3: Cross multiply
    615,772,828x = 849,085,563.18 × 392,400,667
  4. Step 4: Simplify right side
    615,772,828x = 333,181,741,331,902,592
  5. Step 5: Solve for x
    x = 333,181,741,331,902,592/615,772,828
  6. Step 6: Final answer
    x = 541,078,992.42

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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.