Home / 8,688,733.20-13,033,099.80-8,128,861.20

Finding the Fourth Proportional to 8,688,733.20, 13,033,099.80 and 8,128,861.20

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Solution

The fourth proportional to 8,688,733.20, 13,033,099.80 and 8,128,861.20 is: 12,193,291.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,688,733.20 : 13,033,099.80 = 8,128,861.20 : x
  2. Step 2: Convert to fraction form
    8,688,733.20/13,033,099.80 = 8,128,861.20/x
  3. Step 3: Cross multiply
    8,688,733.20x = 13,033,099.80 × 8,128,861.20
  4. Step 4: Simplify right side
    8,688,733.20x = 105,944,259,279,947.77
  5. Step 5: Solve for x
    x = 105,944,259,279,947.77/8,688,733.20
  6. Step 6: Final answer
    x = 12,193,291.80

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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.