Home / 20,668,928.80-31,003,393.20-16,842,553.60

Finding the Fourth Proportional to 20,668,928.80, 31,003,393.20 and 16,842,553.60

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Solution

The fourth proportional to 20,668,928.80, 31,003,393.20 and 16,842,553.60 is: 25,263,830.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,668,928.80 : 31,003,393.20 = 16,842,553.60 : x
  2. Step 2: Convert to fraction form
    20,668,928.80/31,003,393.20 = 16,842,553.60/x
  3. Step 3: Cross multiply
    20,668,928.80x = 31,003,393.20 × 16,842,553.60
  4. Step 4: Simplify right side
    20,668,928.80x = 522,176,311,752,875.56
  5. Step 5: Solve for x
    x = 522,176,311,752,875.56/20,668,928.80
  6. Step 6: Final answer
    x = 25,263,830.40

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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.