Home / 13,188,475.20-19,782,712.80-12,264,686.40

Finding the Fourth Proportional to 13,188,475.20, 19,782,712.80 and 12,264,686.40

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Solution

The fourth proportional to 13,188,475.20, 19,782,712.80 and 12,264,686.40 is: 18,397,029.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,188,475.20 : 19,782,712.80 = 12,264,686.40 : x
  2. Step 2: Convert to fraction form
    13,188,475.20/19,782,712.80 = 12,264,686.40/x
  3. Step 3: Cross multiply
    13,188,475.20x = 19,782,712.80 × 12,264,686.40
  4. Step 4: Simplify right side
    13,188,475.20x = 242,628,768,633,265.94
  5. Step 5: Solve for x
    x = 242,628,768,633,265.94/13,188,475.20
  6. Step 6: Final answer
    x = 18,397,029.60

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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.