Home / 8,688,730.20-13,033,095.30-8,128,858.20

Finding the Fourth Proportional to 8,688,730.20, 13,033,095.30 and 8,128,858.20

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Solution

The fourth proportional to 8,688,730.20, 13,033,095.30 and 8,128,858.20 is: 12,193,287.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,688,730.20 : 13,033,095.30 = 8,128,858.20 : x
  2. Step 2: Convert to fraction form
    8,688,730.20/13,033,095.30 = 8,128,858.20/x
  3. Step 3: Cross multiply
    8,688,730.20x = 13,033,095.30 × 8,128,858.20
  4. Step 4: Simplify right side
    8,688,730.20x = 105,944,183,600,786.47
  5. Step 5: Solve for x
    x = 105,944,183,600,786.47/8,688,730.20
  6. Step 6: Final answer
    x = 12,193,287.30

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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.