Home / 8,712,769.20-13,069,153.80-8,320,858.80

Finding the Fourth Proportional to 8,712,769.20, 13,069,153.80 and 8,320,858.80

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Solution

The fourth proportional to 8,712,769.20, 13,069,153.80 and 8,320,858.80 is: 12,481,288.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,712,769.20 : 13,069,153.80 = 8,320,858.80 : x
  2. Step 2: Convert to fraction form
    8,712,769.20/13,069,153.80 = 8,320,858.80/x
  3. Step 3: Cross multiply
    8,712,769.20x = 13,069,153.80 × 8,320,858.80
  4. Step 4: Simplify right side
    8,712,769.20x = 108,746,583,405,283.44
  5. Step 5: Solve for x
    x = 108,746,583,405,283.44/8,712,769.20
  6. Step 6: Final answer
    x = 12,481,288.20

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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.