Home / 71,931,269.74-99,274,243.72-47,172,286.48

Finding the Fourth Proportional to 71,931,269.74, 99,274,243.72 and 47,172,286.48

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Solution

The fourth proportional to 71,931,269.74, 99,274,243.72 and 47,172,286.48 is: 65,103,717.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,931,269.74 : 99,274,243.72 = 47,172,286.48 : x
  2. Step 2: Convert to fraction form
    71,931,269.74/99,274,243.72 = 47,172,286.48/x
  3. Step 3: Cross multiply
    71,931,269.74x = 99,274,243.72 × 47,172,286.48
  4. Step 4: Simplify right side
    71,931,269.74x = 4,682,993,064,845,181
  5. Step 5: Solve for x
    x = 4,682,993,064,845,181/71,931,269.74
  6. Step 6: Final answer
    x = 65,103,717.50

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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.