Home / 8,615,859.14-11,891,911.78-5,355,136.50

Finding the Fourth Proportional to 8,615,859.14, 11,891,911.78 and 5,355,136.50

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Solution

The fourth proportional to 8,615,859.14, 11,891,911.78 and 5,355,136.50 is: 7,391,347.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,615,859.14 : 11,891,911.78 = 5,355,136.50 : x
  2. Step 2: Convert to fraction form
    8,615,859.14/11,891,911.78 = 5,355,136.50/x
  3. Step 3: Cross multiply
    8,615,859.14x = 11,891,911.78 × 5,355,136.50
  4. Step 4: Simplify right side
    8,615,859.14x = 63,682,810,827,857.97
  5. Step 5: Solve for x
    x = 63,682,810,827,857.97/8,615,859.14
  6. Step 6: Final answer
    x = 7,391,347.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.