Home / 8,189,715.60-12,294,682.20-5,157,075.60

Finding the Fourth Proportional to 8,189,715.60, 12,294,682.20 and 5,157,075.60

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Solution

The fourth proportional to 8,189,715.60, 12,294,682.20 and 5,157,075.60 is: 7,741,978.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,189,715.60 : 12,294,682.20 = 5,157,075.60 : x
  2. Step 2: Convert to fraction form
    8,189,715.60/12,294,682.20 = 5,157,075.60/x
  3. Step 3: Cross multiply
    8,189,715.60x = 12,294,682.20 × 5,157,075.60
  4. Step 4: Simplify right side
    8,189,715.60x = 63,404,605,583,374.31
  5. Step 5: Solve for x
    x = 63,404,605,583,374.31/8,189,715.60
  6. Step 6: Final answer
    x = 7,741,978.93

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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.