Home / 72,661,456.41-100,272,077.85-39,621,622.02

Finding the Fourth Proportional to 72,661,456.41, 100,272,077.85 and 39,621,622.02

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Solution

The fourth proportional to 72,661,456.41, 100,272,077.85 and 39,621,622.02 is: 54,677,439.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,661,456.41 : 100,272,077.85 = 39,621,622.02 : x
  2. Step 2: Convert to fraction form
    72,661,456.41/100,272,077.85 = 39,621,622.02/x
  3. Step 3: Cross multiply
    72,661,456.41x = 100,272,077.85 × 39,621,622.02
  4. Step 4: Simplify right side
    72,661,456.41x = 3,972,942,367,732,714.50
  5. Step 5: Solve for x
    x = 3,972,942,367,732,714.50/72,661,456.41
  6. Step 6: Final answer
    x = 54,677,439.24

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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.