Home / 20,993,858.40-28,905,592.61-17,847,931.80

Finding the Fourth Proportional to 20,993,858.40, 28,905,592.61 and 17,847,931.80

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Solution

The fourth proportional to 20,993,858.40, 28,905,592.61 and 17,847,931.80 is: 24,574,093.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,993,858.40 : 28,905,592.61 = 17,847,931.80 : x
  2. Step 2: Convert to fraction form
    20,993,858.40/28,905,592.61 = 17,847,931.80/x
  3. Step 3: Cross multiply
    20,993,858.40x = 28,905,592.61 × 17,847,931.80
  4. Step 4: Simplify right side
    20,993,858.40x = 515,905,045,497,244.25
  5. Step 5: Solve for x
    x = 515,905,045,497,244.25/20,993,858.40
  6. Step 6: Final answer
    x = 24,574,093.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.