Home / 20,808,004.80-31,212,007.20-18,288,580.80

Finding the Fourth Proportional to 20,808,004.80, 31,212,007.20 and 18,288,580.80

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Solution

The fourth proportional to 20,808,004.80, 31,212,007.20 and 18,288,580.80 is: 27,432,871.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,808,004.80 : 31,212,007.20 = 18,288,580.80 : x
  2. Step 2: Convert to fraction form
    20,808,004.80/31,212,007.20 = 18,288,580.80/x
  3. Step 3: Cross multiply
    20,808,004.80x = 31,212,007.20 × 18,288,580.80
  4. Step 4: Simplify right side
    20,808,004.80x = 570,823,315,607,381.75
  5. Step 5: Solve for x
    x = 570,823,315,607,381.75/20,808,004.80
  6. Step 6: Final answer
    x = 27,432,871.20

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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.