Home / 205,821,008.20-308,731,512.30-103,784,336.20

Finding the Fourth Proportional to 205,821,008.20, 308,731,512.30 and 103,784,336.20

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Solution

The fourth proportional to 205,821,008.20, 308,731,512.30 and 103,784,336.20 is: 155,676,504.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,821,008.20 : 308,731,512.30 = 103,784,336.20 : x
  2. Step 2: Convert to fraction form
    205,821,008.20/308,731,512.30 = 103,784,336.20/x
  3. Step 3: Cross multiply
    205,821,008.20x = 308,731,512.30 × 103,784,336.20
  4. Step 4: Simplify right side
    205,821,008.20x = 32,041,495,068,077,636
  5. Step 5: Solve for x
    x = 32,041,495,068,077,636/205,821,008.20
  6. Step 6: Final answer
    x = 155,676,504.30

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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.