Home / 57,095,821.17-78,792,312.87-30,990,344.33

Finding the Fourth Proportional to 57,095,821.17, 78,792,312.87 and 30,990,344.33

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Solution

The fourth proportional to 57,095,821.17, 78,792,312.87 and 30,990,344.33 is: 42,766,718.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,095,821.17 : 78,792,312.87 = 30,990,344.33 : x
  2. Step 2: Convert to fraction form
    57,095,821.17/78,792,312.87 = 30,990,344.33/x
  3. Step 3: Cross multiply
    57,095,821.17x = 78,792,312.87 × 30,990,344.33
  4. Step 4: Simplify right side
    57,095,821.17x = 2,441,800,906,398,390.50
  5. Step 5: Solve for x
    x = 2,441,800,906,398,390.50/57,095,821.17
  6. Step 6: Final answer
    x = 42,766,718.41

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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.