Home / 205,821,031.20-308,731,546.80-103,784,359.20

Finding the Fourth Proportional to 205,821,031.20, 308,731,546.80 and 103,784,359.20

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Solution

The fourth proportional to 205,821,031.20, 308,731,546.80 and 103,784,359.20 is: 155,676,538.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,821,031.20 : 308,731,546.80 = 103,784,359.20 : x
  2. Step 2: Convert to fraction form
    205,821,031.20/308,731,546.80 = 103,784,359.20/x
  3. Step 3: Cross multiply
    205,821,031.20x = 308,731,546.80 × 103,784,359.20
  4. Step 4: Simplify right side
    205,821,031.20x = 32,041,505,749,462,812
  5. Step 5: Solve for x
    x = 32,041,505,749,462,812/205,821,031.20
  6. Step 6: Final answer
    x = 155,676,538.80

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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.