Home / 205,820,999.70-308,731,499.55-103,784,327.70

Finding the Fourth Proportional to 205,820,999.70, 308,731,499.55 and 103,784,327.70

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Solution

The fourth proportional to 205,820,999.70, 308,731,499.55 and 103,784,327.70 is: 155,676,491.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,820,999.70 : 308,731,499.55 = 103,784,327.70 : x
  2. Step 2: Convert to fraction form
    205,820,999.70/308,731,499.55 = 103,784,327.70/x
  3. Step 3: Cross multiply
    205,820,999.70x = 308,731,499.55 × 103,784,327.70
  4. Step 4: Simplify right side
    205,820,999.70x = 32,041,491,120,609,604
  5. Step 5: Solve for x
    x = 32,041,491,120,609,604/205,820,999.70
  6. Step 6: Final answer
    x = 155,676,491.55

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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.