Home / 8,289,315.20-12,433,972.80-4,921,788.80

Finding the Fourth Proportional to 8,289,315.20, 12,433,972.80 and 4,921,788.80

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Solution

The fourth proportional to 8,289,315.20, 12,433,972.80 and 4,921,788.80 is: 7,382,683.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,289,315.20 : 12,433,972.80 = 4,921,788.80 : x
  2. Step 2: Convert to fraction form
    8,289,315.20/12,433,972.80 = 4,921,788.80/x
  3. Step 3: Cross multiply
    8,289,315.20x = 12,433,972.80 × 4,921,788.80
  4. Step 4: Simplify right side
    8,289,315.20x = 61,197,388,066,544.64
  5. Step 5: Solve for x
    x = 61,197,388,066,544.64/8,289,315.20
  6. Step 6: Final answer
    x = 7,382,683.20

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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.