Home / 640,226,007.24-883,241,345.94-428,601,016.24

Finding the Fourth Proportional to 640,226,007.24, 883,241,345.94 and 428,601,016.24

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Solution

The fourth proportional to 640,226,007.24, 883,241,345.94 and 428,601,016.24 is: 591,288,285.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,226,007.24 : 883,241,345.94 = 428,601,016.24 : x
  2. Step 2: Convert to fraction form
    640,226,007.24/883,241,345.94 = 428,601,016.24/x
  3. Step 3: Cross multiply
    640,226,007.24x = 883,241,345.94 × 428,601,016.24
  4. Step 4: Simplify right side
    640,226,007.24x = 378,558,138,455,069,440
  5. Step 5: Solve for x
    x = 378,558,138,455,069,440/640,226,007.24
  6. Step 6: Final answer
    x = 591,288,285.97

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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.