Home / 415,173,747.20-622,760,620.80-262,291,366.40

Finding the Fourth Proportional to 415,173,747.20, 622,760,620.80 and 262,291,366.40

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Solution

The fourth proportional to 415,173,747.20, 622,760,620.80 and 262,291,366.40 is: 393,437,049.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,173,747.20 : 622,760,620.80 = 262,291,366.40 : x
  2. Step 2: Convert to fraction form
    415,173,747.20/622,760,620.80 = 262,291,366.40/x
  3. Step 3: Cross multiply
    415,173,747.20x = 622,760,620.80 × 262,291,366.40
  4. Step 4: Simplify right side
    415,173,747.20x = 163,344,734,169,744,256
  5. Step 5: Solve for x
    x = 163,344,734,169,744,256/415,173,747.20
  6. Step 6: Final answer
    x = 393,437,049.60

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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.