Home / 518,073,564.88-776,889,135.78-299,874,518.56

Finding the Fourth Proportional to 518,073,564.88, 776,889,135.78 and 299,874,518.56

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Solution

The fourth proportional to 518,073,564.88, 776,889,135.78 and 299,874,518.56 is: 449,683,734.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,073,564.88 : 776,889,135.78 = 299,874,518.56 : x
  2. Step 2: Convert to fraction form
    518,073,564.88/776,889,135.78 = 299,874,518.56/x
  3. Step 3: Cross multiply
    518,073,564.88x = 776,889,135.78 × 299,874,518.56
  4. Step 4: Simplify right side
    518,073,564.88x = 232,969,255,566,521,952
  5. Step 5: Solve for x
    x = 232,969,255,566,521,952/518,073,564.88
  6. Step 6: Final answer
    x = 449,683,734.82

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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.