Home / 72,240,273.50-99,691,071.80-39,199,682.39

Finding the Fourth Proportional to 72,240,273.50, 99,691,071.80 and 39,199,682.39

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Solution

The fourth proportional to 72,240,273.50, 99,691,071.80 and 39,199,682.39 is: 54,095,287.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,240,273.50 : 99,691,071.80 = 39,199,682.39 : x
  2. Step 2: Convert to fraction form
    72,240,273.50/99,691,071.80 = 39,199,682.39/x
  3. Step 3: Cross multiply
    72,240,273.50x = 99,691,071.80 × 39,199,682.39
  4. Step 4: Simplify right side
    72,240,273.50x = 3,907,858,350,984,231.50
  5. Step 5: Solve for x
    x = 3,907,858,350,984,231.50/72,240,273.50
  6. Step 6: Final answer
    x = 54,095,287.32

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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.