Home / 8,320,840.40-12,481,260.60-7,292,334.80

Finding the Fourth Proportional to 8,320,840.40, 12,481,260.60 and 7,292,334.80

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Solution

The fourth proportional to 8,320,840.40, 12,481,260.60 and 7,292,334.80 is: 10,938,502.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,320,840.40 : 12,481,260.60 = 7,292,334.80 : x
  2. Step 2: Convert to fraction form
    8,320,840.40/12,481,260.60 = 7,292,334.80/x
  3. Step 3: Cross multiply
    8,320,840.40x = 12,481,260.60 × 7,292,334.80
  4. Step 4: Simplify right side
    8,320,840.40x = 91,017,531,021,248.88
  5. Step 5: Solve for x
    x = 91,017,531,021,248.88/8,320,840.40
  6. Step 6: Final answer
    x = 10,938,502.20

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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.