Home / 8,683,871.24-11,975,900.64-5,420,988.80

Finding the Fourth Proportional to 8,683,871.24, 11,975,900.64 and 5,420,988.80

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Solution

The fourth proportional to 8,683,871.24, 11,975,900.64 and 5,420,988.80 is: 7,476,069.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,683,871.24 : 11,975,900.64 = 5,420,988.80 : x
  2. Step 2: Convert to fraction form
    8,683,871.24/11,975,900.64 = 5,420,988.80/x
  3. Step 3: Cross multiply
    8,683,871.24x = 11,975,900.64 × 5,420,988.80
  4. Step 4: Simplify right side
    8,683,871.24x = 64,921,223,239,352.84
  5. Step 5: Solve for x
    x = 64,921,223,239,352.84/8,683,871.24
  6. Step 6: Final answer
    x = 7,476,069.31

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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.