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Finding the Fourth Proportional to 209,952,858.60, 314,929,287.90 and 118,119,853.80

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Solution

The fourth proportional to 209,952,858.60, 314,929,287.90 and 118,119,853.80 is: 177,179,780.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,952,858.60 : 314,929,287.90 = 118,119,853.80 : x
  2. Step 2: Convert to fraction form
    209,952,858.60/314,929,287.90 = 118,119,853.80/x
  3. Step 3: Cross multiply
    209,952,858.60x = 314,929,287.90 × 118,119,853.80
  4. Step 4: Simplify right side
    209,952,858.60x = 37,199,401,444,086,104
  5. Step 5: Solve for x
    x = 37,199,401,444,086,104/209,952,858.60
  6. Step 6: Final answer
    x = 177,179,780.70

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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.