Home / 281,569,953.80-422,355,718.04-87,509,745.56

Finding the Fourth Proportional to 281,569,953.80, 422,355,718.04 and 87,509,745.56

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Solution

The fourth proportional to 281,569,953.80, 422,355,718.04 and 87,509,745.56 is: 131,264,863.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,569,953.80 : 422,355,718.04 = 87,509,745.56 : x
  2. Step 2: Convert to fraction form
    281,569,953.80/422,355,718.04 = 87,509,745.56/x
  3. Step 3: Cross multiply
    281,569,953.80x = 422,355,718.04 × 87,509,745.56
  4. Step 4: Simplify right side
    281,569,953.80x = 36,960,241,421,491,504
  5. Step 5: Solve for x
    x = 36,960,241,421,491,504/281,569,953.80
  6. Step 6: Final answer
    x = 131,264,863.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.