Home / 72,661,573.53-100,272,239.28-39,621,739.14

Finding the Fourth Proportional to 72,661,573.53, 100,272,239.28 and 39,621,739.14

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Solution

The fourth proportional to 72,661,573.53, 100,272,239.28 and 39,621,739.14 is: 54,677,600.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,661,573.53 : 100,272,239.28 = 39,621,739.14 : x
  2. Step 2: Convert to fraction form
    72,661,573.53/100,272,239.28 = 39,621,739.14/x
  3. Step 3: Cross multiply
    72,661,573.53x = 100,272,239.28 × 39,621,739.14
  4. Step 4: Simplify right side
    72,661,573.53x = 3,972,960,507,735,821.50
  5. Step 5: Solve for x
    x = 3,972,960,507,735,821.50/72,661,573.53
  6. Step 6: Final answer
    x = 54,677,600.76

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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.