Home / 28,012,108.96-42,002,403.12-8,839,292.32

Finding the Fourth Proportional to 28,012,108.96, 42,002,403.12 and 8,839,292.32

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Solution

The fourth proportional to 28,012,108.96, 42,002,403.12 and 8,839,292.32 is: 13,253,965.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,012,108.96 : 42,002,403.12 = 8,839,292.32 : x
  2. Step 2: Convert to fraction form
    28,012,108.96/42,002,403.12 = 8,839,292.32/x
  3. Step 3: Cross multiply
    28,012,108.96x = 42,002,403.12 × 8,839,292.32
  4. Step 4: Simplify right side
    28,012,108.96x = 371,271,519,320,160
  5. Step 5: Solve for x
    x = 371,271,519,320,160/28,012,108.96
  6. Step 6: Final answer
    x = 13,253,965.27

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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.