Home / 7,191,603.20-10,787,404.80-6,469,990.40

Finding the Fourth Proportional to 7,191,603.20, 10,787,404.80 and 6,469,990.40

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Solution

The fourth proportional to 7,191,603.20, 10,787,404.80 and 6,469,990.40 is: 9,704,985.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,191,603.20 : 10,787,404.80 = 6,469,990.40 : x
  2. Step 2: Convert to fraction form
    7,191,603.20/10,787,404.80 = 6,469,990.40/x
  3. Step 3: Cross multiply
    7,191,603.20x = 10,787,404.80 × 6,469,990.40
  4. Step 4: Simplify right side
    7,191,603.20x = 69,794,405,496,913.93
  5. Step 5: Solve for x
    x = 69,794,405,496,913.93/7,191,603.20
  6. Step 6: Final answer
    x = 9,704,985.60

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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.