Home / 71,286,009.68-98,372,061.96-38,690,261.84

Finding the Fourth Proportional to 71,286,009.68, 98,372,061.96 and 38,690,261.84

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Solution

The fourth proportional to 71,286,009.68, 98,372,061.96 and 38,690,261.84 is: 53,391,133.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,286,009.68 : 98,372,061.96 = 38,690,261.84 : x
  2. Step 2: Convert to fraction form
    71,286,009.68/98,372,061.96 = 38,690,261.84/x
  3. Step 3: Cross multiply
    71,286,009.68x = 98,372,061.96 × 38,690,261.84
  4. Step 4: Simplify right side
    71,286,009.68x = 3,806,040,834,973,103.50
  5. Step 5: Solve for x
    x = 3,806,040,834,973,103.50/71,286,009.68
  6. Step 6: Final answer
    x = 53,391,133.16

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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.