Home / 72,792,069.45-109,188,104.18-67,249,336.65

Finding the Fourth Proportional to 72,792,069.45, 109,188,104.18 and 67,249,336.65

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Solution

The fourth proportional to 72,792,069.45, 109,188,104.18 and 67,249,336.65 is: 100,874,004.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,792,069.45 : 109,188,104.18 = 67,249,336.65 : x
  2. Step 2: Convert to fraction form
    72,792,069.45/109,188,104.18 = 67,249,336.65/x
  3. Step 3: Cross multiply
    72,792,069.45x = 109,188,104.18 × 67,249,336.65
  4. Step 4: Simplify right side
    72,792,069.45x = 7,342,827,575,839,846
  5. Step 5: Solve for x
    x = 7,342,827,575,839,846/72,792,069.45
  6. Step 6: Final answer
    x = 100,874,004.98

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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.