Home / 8,320,941.80-12,481,412.70-6,809,287.40

Finding the Fourth Proportional to 8,320,941.80, 12,481,412.70 and 6,809,287.40

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Solution

The fourth proportional to 8,320,941.80, 12,481,412.70 and 6,809,287.40 is: 10,213,931.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,320,941.80 : 12,481,412.70 = 6,809,287.40 : x
  2. Step 2: Convert to fraction form
    8,320,941.80/12,481,412.70 = 6,809,287.40/x
  3. Step 3: Cross multiply
    8,320,941.80x = 12,481,412.70 × 6,809,287.40
  4. Step 4: Simplify right side
    8,320,941.80x = 84,989,526,232,309.98
  5. Step 5: Solve for x
    x = 84,989,526,232,309.98/8,320,941.80
  6. Step 6: Final answer
    x = 10,213,931.10

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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.