Home / 57,095,988.11-78,792,543.36-30,990,511.88

Finding the Fourth Proportional to 57,095,988.11, 78,792,543.36 and 30,990,511.88

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Solution

The fourth proportional to 57,095,988.11, 78,792,543.36 and 30,990,511.88 is: 42,766,949.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,095,988.11 : 78,792,543.36 = 30,990,511.88 : x
  2. Step 2: Convert to fraction form
    57,095,988.11/78,792,543.36 = 30,990,511.88/x
  3. Step 3: Cross multiply
    57,095,988.11x = 78,792,543.36 × 30,990,511.88
  4. Step 4: Simplify right side
    57,095,988.11x = 2,441,821,250,898,542.50
  5. Step 5: Solve for x
    x = 2,441,821,250,898,542.50/57,095,988.11
  6. Step 6: Final answer
    x = 42,766,949.69

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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.