Home / 72,259,163.03-99,717,754.56-39,219,424.22

Finding the Fourth Proportional to 72,259,163.03, 99,717,754.56 and 39,219,424.22

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Solution

The fourth proportional to 72,259,163.03, 99,717,754.56 and 39,219,424.22 is: 54,122,864.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,259,163.03 : 99,717,754.56 = 39,219,424.22 : x
  2. Step 2: Convert to fraction form
    72,259,163.03/99,717,754.56 = 39,219,424.22/x
  3. Step 3: Cross multiply
    72,259,163.03x = 99,717,754.56 × 39,219,424.22
  4. Step 4: Simplify right side
    72,259,163.03x = 3,910,872,918,354,479.50
  5. Step 5: Solve for x
    x = 3,910,872,918,354,479.50/72,259,163.03
  6. Step 6: Final answer
    x = 54,122,864.90

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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.