Home / 280,017,908.80-420,026,863.20-181,382,459.20

Finding the Fourth Proportional to 280,017,908.80, 420,026,863.20 and 181,382,459.20

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Solution

The fourth proportional to 280,017,908.80, 420,026,863.20 and 181,382,459.20 is: 272,073,688.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,017,908.80 : 420,026,863.20 = 181,382,459.20 : x
  2. Step 2: Convert to fraction form
    280,017,908.80/420,026,863.20 = 181,382,459.20/x
  3. Step 3: Cross multiply
    280,017,908.80x = 420,026,863.20 × 181,382,459.20
  4. Step 4: Simplify right side
    280,017,908.80x = 76,185,505,377,277,968
  5. Step 5: Solve for x
    x = 76,185,505,377,277,968/280,017,908.80
  6. Step 6: Final answer
    x = 272,073,688.80

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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.