Home / 9,513,153.15-13,128,084.77-5,162,128.80

Finding the Fourth Proportional to 9,513,153.15, 13,128,084.77 and 5,162,128.80

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Solution

The fourth proportional to 9,513,153.15, 13,128,084.77 and 5,162,128.80 is: 7,123,701.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,513,153.15 : 13,128,084.77 = 5,162,128.80 : x
  2. Step 2: Convert to fraction form
    9,513,153.15/13,128,084.77 = 5,162,128.80/x
  3. Step 3: Cross multiply
    9,513,153.15x = 13,128,084.77 × 5,162,128.80
  4. Step 4: Simplify right side
    9,513,153.15x = 67,768,864,454,247.73
  5. Step 5: Solve for x
    x = 67,768,864,454,247.73/9,513,153.15
  6. Step 6: Final answer
    x = 7,123,701.61

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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.