Home / 72,259,218.61-99,717,795.48-39,219,474.55

Finding the Fourth Proportional to 72,259,218.61, 99,717,795.48 and 39,219,474.55

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Solution

The fourth proportional to 72,259,218.61, 99,717,795.48 and 39,219,474.55 is: 54,122,914.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,259,218.61 : 99,717,795.48 = 39,219,474.55 : x
  2. Step 2: Convert to fraction form
    72,259,218.61/99,717,795.48 = 39,219,474.55/x
  3. Step 3: Cross multiply
    72,259,218.61x = 99,717,795.48 × 39,219,474.55
  4. Step 4: Simplify right side
    72,259,218.61x = 3,910,879,542,009,965
  5. Step 5: Solve for x
    x = 3,910,879,542,009,965/72,259,218.61
  6. Step 6: Final answer
    x = 54,122,914.93

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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.