Home / 280,040,913.98-420,057,992.00-72,760,983.29

Finding the Fourth Proportional to 280,040,913.98, 420,057,992.00 and 72,760,983.29

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Solution

The fourth proportional to 280,040,913.98, 420,057,992.00 and 72,760,983.29 is: 109,140,597.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,040,913.98 : 420,057,992.00 = 72,760,983.29 : x
  2. Step 2: Convert to fraction form
    280,040,913.98/420,057,992.00 = 72,760,983.29/x
  3. Step 3: Cross multiply
    280,040,913.98x = 420,057,992.00 × 72,760,983.29
  4. Step 4: Simplify right side
    280,040,913.98x = 30,563,832,534,824,564
  5. Step 5: Solve for x
    x = 30,563,832,534,824,564/280,040,913.98
  6. Step 6: Final answer
    x = 109,140,597.00

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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.