Home / 28,082,813.40-42,124,220.10-8,915,070.60

Finding the Fourth Proportional to 28,082,813.40, 42,124,220.10 and 8,915,070.60

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Solution

The fourth proportional to 28,082,813.40, 42,124,220.10 and 8,915,070.60 is: 13,372,605.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,082,813.40 : 42,124,220.10 = 8,915,070.60 : x
  2. Step 2: Convert to fraction form
    28,082,813.40/42,124,220.10 = 8,915,070.60/x
  3. Step 3: Cross multiply
    28,082,813.40x = 42,124,220.10 × 8,915,070.60
  4. Step 4: Simplify right side
    28,082,813.40x = 375,540,396,161,439.06
  5. Step 5: Solve for x
    x = 375,540,396,161,439.06/28,082,813.40
  6. Step 6: Final answer
    x = 13,372,605.90

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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.