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Finding the Fourth Proportional to 72,792,124,920.45, 109,188,187,380.67 and 72,792,124,920.45

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Solution

The fourth proportional to 72,792,124,920.45, 109,188,187,380.67 and 72,792,124,920.45 is: 109,188,187,380.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,792,124,920.45 : 109,188,187,380.67 = 72,792,124,920.45 : x
  2. Step 2: Convert to fraction form
    72,792,124,920.45/109,188,187,380.67 = 72,792,124,920.45/x
  3. Step 3: Cross multiply
    72,792,124,920.45x = 109,188,187,380.67 × 72,792,124,920.45
  4. Step 4: Simplify right side
    72,792,124,920.45x = 7,948,040,175,651,232,153,600
  5. Step 5: Solve for x
    x = 7,948,040,175,651,232,153,600/72,792,124,920.45
  6. Step 6: Final answer
    x = 109,188,187,380.67

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1.5x scale

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.