Home / 18,711,208.80-28,066,813.20-13,672,360.80

Finding the Fourth Proportional to 18,711,208.80, 28,066,813.20 and 13,672,360.80

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Solution

The fourth proportional to 18,711,208.80, 28,066,813.20 and 13,672,360.80 is: 20,508,541.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,711,208.80 : 28,066,813.20 = 13,672,360.80 : x
  2. Step 2: Convert to fraction form
    18,711,208.80/28,066,813.20 = 13,672,360.80/x
  3. Step 3: Cross multiply
    18,711,208.80x = 28,066,813.20 × 13,672,360.80
  4. Step 4: Simplify right side
    18,711,208.80x = 383,739,596,576,602.56
  5. Step 5: Solve for x
    x = 383,739,596,576,602.56/18,711,208.80
  6. Step 6: Final answer
    x = 20,508,541.20

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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.