Home / 280,395,959.63-386,945,472.94-154,944,653.27

Finding the Fourth Proportional to 280,395,959.63, 386,945,472.94 and 154,944,653.27

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Solution

The fourth proportional to 280,395,959.63, 386,945,472.94 and 154,944,653.27 is: 213,823,095.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,395,959.63 : 386,945,472.94 = 154,944,653.27 : x
  2. Step 2: Convert to fraction form
    280,395,959.63/386,945,472.94 = 154,944,653.27/x
  3. Step 3: Cross multiply
    280,395,959.63x = 386,945,472.94 × 154,944,653.27
  4. Step 4: Simplify right side
    280,395,959.63x = 59,955,132,136,762,376
  5. Step 5: Solve for x
    x = 59,955,132,136,762,376/280,395,959.63
  6. Step 6: Final answer
    x = 213,823,095.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.