Home / 518,657,359.14-778,040,536.78-168,930,660.18

Finding the Fourth Proportional to 518,657,359.14, 778,040,536.78 and 168,930,660.18

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Solution

The fourth proportional to 518,657,359.14, 778,040,536.78 and 168,930,660.18 is: 253,413,740.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,657,359.14 : 778,040,536.78 = 168,930,660.18 : x
  2. Step 2: Convert to fraction form
    518,657,359.14/778,040,536.78 = 168,930,660.18/x
  3. Step 3: Cross multiply
    518,657,359.14x = 778,040,536.78 × 168,930,660.18
  4. Step 4: Simplify right side
    518,657,359.14x = 131,434,901,525,046,976
  5. Step 5: Solve for x
    x = 131,434,901,525,046,976/518,657,359.14
  6. Step 6: Final answer
    x = 253,413,740.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.