Home / 8,190,909.60-12,286,364.40-7,686,040.65

Finding the Fourth Proportional to 8,190,909.60, 12,286,364.40 and 7,686,040.65

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Solution

The fourth proportional to 8,190,909.60, 12,286,364.40 and 7,686,040.65 is: 11,529,060.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,190,909.60 : 12,286,364.40 = 7,686,040.65 : x
  2. Step 2: Convert to fraction form
    8,190,909.60/12,286,364.40 = 7,686,040.65/x
  3. Step 3: Cross multiply
    8,190,909.60x = 12,286,364.40 × 7,686,040.65
  4. Step 4: Simplify right side
    8,190,909.60x = 94,433,496,219,112.88
  5. Step 5: Solve for x
    x = 94,433,496,219,112.88/8,190,909.60
  6. Step 6: Final answer
    x = 11,529,060.98

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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.