Home / 205,821,000.70-308,731,501.05-103,784,328.70

Finding the Fourth Proportional to 205,821,000.70, 308,731,501.05 and 103,784,328.70

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Solution

The fourth proportional to 205,821,000.70, 308,731,501.05 and 103,784,328.70 is: 155,676,493.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,821,000.70 : 308,731,501.05 = 103,784,328.70 : x
  2. Step 2: Convert to fraction form
    205,821,000.70/308,731,501.05 = 103,784,328.70/x
  3. Step 3: Cross multiply
    205,821,000.70x = 308,731,501.05 × 103,784,328.70
  4. Step 4: Simplify right side
    205,821,000.70x = 32,041,491,585,017,596
  5. Step 5: Solve for x
    x = 32,041,491,585,017,596/205,821,000.70
  6. Step 6: Final answer
    x = 155,676,493.05

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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.