Home / 20,813,076.40-31,219,614.60-16,986,701.20

Finding the Fourth Proportional to 20,813,076.40, 31,219,614.60 and 16,986,701.20

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Solution

The fourth proportional to 20,813,076.40, 31,219,614.60 and 16,986,701.20 is: 25,480,051.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,813,076.40 : 31,219,614.60 = 16,986,701.20 : x
  2. Step 2: Convert to fraction form
    20,813,076.40/31,219,614.60 = 16,986,701.20/x
  3. Step 3: Cross multiply
    20,813,076.40x = 31,219,614.60 × 16,986,701.20
  4. Step 4: Simplify right side
    20,813,076.40x = 530,318,264,789,357.50
  5. Step 5: Solve for x
    x = 530,318,264,789,357.50/20,813,076.40
  6. Step 6: Final answer
    x = 25,480,051.80

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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.