Home / 20,218,986.60-30,328,479.90-16,628,807.40

Finding the Fourth Proportional to 20,218,986.60, 30,328,479.90 and 16,628,807.40

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Solution

The fourth proportional to 20,218,986.60, 30,328,479.90 and 16,628,807.40 is: 24,943,211.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,218,986.60 : 30,328,479.90 = 16,628,807.40 : x
  2. Step 2: Convert to fraction form
    20,218,986.60/30,328,479.90 = 16,628,807.40/x
  3. Step 3: Cross multiply
    20,218,986.60x = 30,328,479.90 × 16,628,807.40
  4. Step 4: Simplify right side
    20,218,986.60x = 504,326,450,991,871.25
  5. Step 5: Solve for x
    x = 504,326,450,991,871.25/20,218,986.60
  6. Step 6: Final answer
    x = 24,943,211.10

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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.