Home / 8,640,211.80-12,960,317.70-8,271,629.40

Finding the Fourth Proportional to 8,640,211.80, 12,960,317.70 and 8,271,629.40

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Solution

The fourth proportional to 8,640,211.80, 12,960,317.70 and 8,271,629.40 is: 12,407,444.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,640,211.80 : 12,960,317.70 = 8,271,629.40 : x
  2. Step 2: Convert to fraction form
    8,640,211.80/12,960,317.70 = 8,271,629.40/x
  3. Step 3: Cross multiply
    8,640,211.80x = 12,960,317.70 × 8,271,629.40
  4. Step 4: Simplify right side
    8,640,211.80x = 107,202,944,920,660.38
  5. Step 5: Solve for x
    x = 107,202,944,920,660.38/8,640,211.80
  6. Step 6: Final answer
    x = 12,407,444.10

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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.