Home / 392,309,913.69-541,387,710.20-216,097,908.95

Finding the Fourth Proportional to 392,309,913.69, 541,387,710.20 and 216,097,908.95

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Solution

The fourth proportional to 392,309,913.69, 541,387,710.20 and 216,097,908.95 is: 298,215,130.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,309,913.69 : 541,387,710.20 = 216,097,908.95 : x
  2. Step 2: Convert to fraction form
    392,309,913.69/541,387,710.20 = 216,097,908.95/x
  3. Step 3: Cross multiply
    392,309,913.69x = 541,387,710.20 × 216,097,908.95
  4. Step 4: Simplify right side
    392,309,913.69x = 116,992,752,107,342,288
  5. Step 5: Solve for x
    x = 116,992,752,107,342,288/392,309,913.69
  6. Step 6: Final answer
    x = 298,215,130.50

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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.