Home / 28,531,982.40-42,797,973.60-18,960,244.80

Finding the Fourth Proportional to 28,531,982.40, 42,797,973.60 and 18,960,244.80

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Solution

The fourth proportional to 28,531,982.40, 42,797,973.60 and 18,960,244.80 is: 28,440,367.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,531,982.40 : 42,797,973.60 = 18,960,244.80 : x
  2. Step 2: Convert to fraction form
    28,531,982.40/42,797,973.60 = 18,960,244.80/x
  3. Step 3: Cross multiply
    28,531,982.40x = 42,797,973.60 × 18,960,244.80
  4. Step 4: Simplify right side
    28,531,982.40x = 811,460,056,399,937.38
  5. Step 5: Solve for x
    x = 811,460,056,399,937.38/28,531,982.40
  6. Step 6: Final answer
    x = 28,440,367.20

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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.