Home / 640,969,459.20-884,527,257.60-362,500,531.20

Finding the Fourth Proportional to 640,969,459.20, 884,527,257.60 and 362,500,531.20

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Solution

The fourth proportional to 640,969,459.20, 884,527,257.60 and 362,500,531.20 is: 500,244,740.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,969,459.20 : 884,527,257.60 = 362,500,531.20 : x
  2. Step 2: Convert to fraction form
    640,969,459.20/884,527,257.60 = 362,500,531.20/x
  3. Step 3: Cross multiply
    640,969,459.20x = 884,527,257.60 × 362,500,531.20
  4. Step 4: Simplify right side
    640,969,459.20x = 320,641,600,740,879,232
  5. Step 5: Solve for x
    x = 320,641,600,740,879,232/640,969,459.20
  6. Step 6: Final answer
    x = 500,244,740.43

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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.