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Finding the Fourth Proportional to 354,339,781.60, 531,509,672.40 and 163,236,805.60

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Solution

The fourth proportional to 354,339,781.60, 531,509,672.40 and 163,236,805.60 is: 244,855,208.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,339,781.60 : 531,509,672.40 = 163,236,805.60 : x
  2. Step 2: Convert to fraction form
    354,339,781.60/531,509,672.40 = 163,236,805.60/x
  3. Step 3: Cross multiply
    354,339,781.60x = 531,509,672.40 × 163,236,805.60
  4. Step 4: Simplify right side
    354,339,781.60x = 86,761,941,068,078,480
  5. Step 5: Solve for x
    x = 86,761,941,068,078,480/354,339,781.60
  6. Step 6: Final answer
    x = 244,855,208.40

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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.