Home / 103,684,609.80-155,526,914.70-80,841,832.20

Finding the Fourth Proportional to 103,684,609.80, 155,526,914.70 and 80,841,832.20

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Solution

The fourth proportional to 103,684,609.80, 155,526,914.70 and 80,841,832.20 is: 121,262,748.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,684,609.80 : 155,526,914.70 = 80,841,832.20 : x
  2. Step 2: Convert to fraction form
    103,684,609.80/155,526,914.70 = 80,841,832.20/x
  3. Step 3: Cross multiply
    103,684,609.80x = 155,526,914.70 × 80,841,832.20
  4. Step 4: Simplify right side
    103,684,609.80x = 12,573,080,740,761,112
  5. Step 5: Solve for x
    x = 12,573,080,740,761,112/103,684,609.80
  6. Step 6: Final answer
    x = 121,262,748.30

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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.