Home / 67,968,512.80-101,952,769.20-43,782,042.40

Finding the Fourth Proportional to 67,968,512.80, 101,952,769.20 and 43,782,042.40

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Solution

The fourth proportional to 67,968,512.80, 101,952,769.20 and 43,782,042.40 is: 65,673,063.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,968,512.80 : 101,952,769.20 = 43,782,042.40 : x
  2. Step 2: Convert to fraction form
    67,968,512.80/101,952,769.20 = 43,782,042.40/x
  3. Step 3: Cross multiply
    67,968,512.80x = 101,952,769.20 × 43,782,042.40
  4. Step 4: Simplify right side
    67,968,512.80x = 4,463,700,463,911,814
  5. Step 5: Solve for x
    x = 4,463,700,463,911,814/67,968,512.80
  6. Step 6: Final answer
    x = 65,673,063.60

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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.