Home / 8,512,043.40-12,768,065.10-7,728,222.60

Finding the Fourth Proportional to 8,512,043.40, 12,768,065.10 and 7,728,222.60

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Solution

The fourth proportional to 8,512,043.40, 12,768,065.10 and 7,728,222.60 is: 11,592,333.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,512,043.40 : 12,768,065.10 = 7,728,222.60 : x
  2. Step 2: Convert to fraction form
    8,512,043.40/12,768,065.10 = 7,728,222.60/x
  3. Step 3: Cross multiply
    8,512,043.40x = 12,768,065.10 × 7,728,222.60
  4. Step 4: Simplify right side
    8,512,043.40x = 98,674,449,264,091.25
  5. Step 5: Solve for x
    x = 98,674,449,264,091.25/8,512,043.40
  6. Step 6: Final answer
    x = 11,592,333.90

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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.