Home / 20,241,932.40-30,362,898.60-18,289,378.80

Finding the Fourth Proportional to 20,241,932.40, 30,362,898.60 and 18,289,378.80

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Solution

The fourth proportional to 20,241,932.40, 30,362,898.60 and 18,289,378.80 is: 27,434,068.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,241,932.40 : 30,362,898.60 = 18,289,378.80 : x
  2. Step 2: Convert to fraction form
    20,241,932.40/30,362,898.60 = 18,289,378.80/x
  3. Step 3: Cross multiply
    20,241,932.40x = 30,362,898.60 × 18,289,378.80
  4. Step 4: Simplify right side
    20,241,932.40x = 555,318,553,961,389.75
  5. Step 5: Solve for x
    x = 555,318,553,961,389.75/20,241,932.40
  6. Step 6: Final answer
    x = 27,434,068.20

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1.5x scale

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.