Home / 640,226,164.52-883,241,566.55-428,601,177.35

Finding the Fourth Proportional to 640,226,164.52, 883,241,566.55 and 428,601,177.35

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Solution

The fourth proportional to 640,226,164.52, 883,241,566.55 and 428,601,177.35 is: 591,288,510.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,226,164.52 : 883,241,566.55 = 428,601,177.35 : x
  2. Step 2: Convert to fraction form
    640,226,164.52/883,241,566.55 = 428,601,177.35/x
  3. Step 3: Cross multiply
    640,226,164.52x = 883,241,566.55 × 428,601,177.35
  4. Step 4: Simplify right side
    640,226,164.52x = 378,558,375,306,148,608
  5. Step 5: Solve for x
    x = 378,558,375,306,148,608/640,226,164.52
  6. Step 6: Final answer
    x = 591,288,510.66

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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.