Home / 28,331,310.60-42,398,988.30-16,979,905.80

Finding the Fourth Proportional to 28,331,310.60, 42,398,988.30 and 16,979,905.80

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Solution

The fourth proportional to 28,331,310.60, 42,398,988.30 and 16,979,905.80 is: 25,411,137.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,331,310.60 : 42,398,988.30 = 16,979,905.80 : x
  2. Step 2: Convert to fraction form
    28,331,310.60/42,398,988.30 = 16,979,905.80/x
  3. Step 3: Cross multiply
    28,331,310.60x = 42,398,988.30 × 16,979,905.80
  4. Step 4: Simplify right side
    28,331,310.60x = 719,930,827,349,302.12
  5. Step 5: Solve for x
    x = 719,930,827,349,302.12/28,331,310.60
  6. Step 6: Final answer
    x = 25,411,137.43

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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.