Home / 373,497,111.45-515,469,730.84-310,662,352.49

Finding the Fourth Proportional to 373,497,111.45, 515,469,730.84 and 310,662,352.49

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Solution

The fourth proportional to 373,497,111.45, 515,469,730.84 and 310,662,352.49 is: 428,750,408.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,497,111.45 : 515,469,730.84 = 310,662,352.49 : x
  2. Step 2: Convert to fraction form
    373,497,111.45/515,469,730.84 = 310,662,352.49/x
  3. Step 3: Cross multiply
    373,497,111.45x = 515,469,730.84 × 310,662,352.49
  4. Step 4: Simplify right side
    373,497,111.45x = 160,137,039,216,787,488
  5. Step 5: Solve for x
    x = 160,137,039,216,787,488/373,497,111.45
  6. Step 6: Final answer
    x = 428,750,408.79

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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.