Home / 15,784,615.80-21,782,835.41-8,541,271.80

Finding the Fourth Proportional to 15,784,615.80, 21,782,835.41 and 8,541,271.80

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Solution

The fourth proportional to 15,784,615.80, 21,782,835.41 and 8,541,271.80 is: 11,786,990.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,784,615.80 : 21,782,835.41 = 8,541,271.80 : x
  2. Step 2: Convert to fraction form
    15,784,615.80/21,782,835.41 = 8,541,271.80/x
  3. Step 3: Cross multiply
    15,784,615.80x = 21,782,835.41 × 8,541,271.80
  4. Step 4: Simplify right side
    15,784,615.80x = 186,053,117,811,474.47
  5. Step 5: Solve for x
    x = 186,053,117,811,474.47/15,784,615.80
  6. Step 6: Final answer
    x = 11,786,990.58

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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.