Home / 8,209,724.76-12,309,370.80-7,200,872.40

Finding the Fourth Proportional to 8,209,724.76, 12,309,370.80 and 7,200,872.40

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Solution

The fourth proportional to 8,209,724.76, 12,309,370.80 and 7,200,872.40 is: 10,796,733.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,209,724.76 : 12,309,370.80 = 7,200,872.40 : x
  2. Step 2: Convert to fraction form
    8,209,724.76/12,309,370.80 = 7,200,872.40/x
  3. Step 3: Cross multiply
    8,209,724.76x = 12,309,370.80 × 7,200,872.40
  4. Step 4: Simplify right side
    8,209,724.76x = 88,638,208,455,085.94
  5. Step 5: Solve for x
    x = 88,638,208,455,085.94/8,209,724.76
  6. Step 6: Final answer
    x = 10,796,733.27

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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.