Home / 8,320,294.40-12,480,441.60-5,296,985.60

Finding the Fourth Proportional to 8,320,294.40, 12,480,441.60 and 5,296,985.60

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Solution

The fourth proportional to 8,320,294.40, 12,480,441.60 and 5,296,985.60 is: 7,945,478.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,320,294.40 : 12,480,441.60 = 5,296,985.60 : x
  2. Step 2: Convert to fraction form
    8,320,294.40/12,480,441.60 = 5,296,985.60/x
  3. Step 3: Cross multiply
    8,320,294.40x = 12,480,441.60 × 5,296,985.60
  4. Step 4: Simplify right side
    8,320,294.40x = 66,108,719,436,840.95
  5. Step 5: Solve for x
    x = 66,108,719,436,840.95/8,320,294.40
  6. Step 6: Final answer
    x = 7,945,478.40

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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.