Home / 282,786,305.38-390,238,983.70-163,713,945.44

Finding the Fourth Proportional to 282,786,305.38, 390,238,983.70 and 163,713,945.44

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Solution

The fourth proportional to 282,786,305.38, 390,238,983.70 and 163,713,945.44 is: 225,921,702.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,786,305.38 : 390,238,983.70 = 163,713,945.44 : x
  2. Step 2: Convert to fraction form
    282,786,305.38/390,238,983.70 = 163,713,945.44/x
  3. Step 3: Cross multiply
    282,786,305.38x = 390,238,983.70 × 163,713,945.44
  4. Step 4: Simplify right side
    282,786,305.38x = 63,887,563,686,589,160
  5. Step 5: Solve for x
    x = 63,887,563,686,589,160/282,786,305.38
  6. Step 6: Final answer
    x = 225,921,702.97

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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.