Home / 392,552,700.34-541,722,729.52-216,340,697.69

Finding the Fourth Proportional to 392,552,700.34, 541,722,729.52 and 216,340,697.69

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Solution

The fourth proportional to 392,552,700.34, 541,722,729.52 and 216,340,697.69 is: 298,550,164.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,552,700.34 : 541,722,729.52 = 216,340,697.69 : x
  2. Step 2: Convert to fraction form
    392,552,700.34/541,722,729.52 = 216,340,697.69/x
  3. Step 3: Cross multiply
    392,552,700.34x = 541,722,729.52 × 216,340,697.69
  4. Step 4: Simplify right side
    392,552,700.34x = 117,196,673,258,952,992
  5. Step 5: Solve for x
    x = 117,196,673,258,952,992/392,552,700.34
  6. Step 6: Final answer
    x = 298,550,164.49

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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.