Home / 8,808,193.20-13,212,289.80-7,688,449.20

Finding the Fourth Proportional to 8,808,193.20, 13,212,289.80 and 7,688,449.20

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Solution

The fourth proportional to 8,808,193.20, 13,212,289.80 and 7,688,449.20 is: 11,532,673.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,808,193.20 : 13,212,289.80 = 7,688,449.20 : x
  2. Step 2: Convert to fraction form
    8,808,193.20/13,212,289.80 = 7,688,449.20/x
  3. Step 3: Cross multiply
    8,808,193.20x = 13,212,289.80 × 7,688,449.20
  4. Step 4: Simplify right side
    8,808,193.20x = 101,582,018,942,978.17
  5. Step 5: Solve for x
    x = 101,582,018,942,978.17/8,808,193.20
  6. Step 6: Final answer
    x = 11,532,673.80

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Similar ratio
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1.5x scale

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.