Home / 615,772,829-849,085,564.56-392,400,668

Finding the Fourth Proportional to 615,772,829, 849,085,564.56 and 392,400,668

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Solution

The fourth proportional to 615,772,829, 849,085,564.56 and 392,400,668 is: 541,078,993.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,772,829 : 849,085,564.56 = 392,400,668 : x
  2. Step 2: Convert to fraction form
    615,772,829/849,085,564.56 = 392,400,668/x
  3. Step 3: Cross multiply
    615,772,829x = 849,085,564.56 × 392,400,668
  4. Step 4: Simplify right side
    615,772,829x = 333,181,742,722,501,120
  5. Step 5: Solve for x
    x = 333,181,742,722,501,120/615,772,829
  6. Step 6: Final answer
    x = 541,078,993.80

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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.