Home / 205,636,912.62-308,506,421.71-102,054,731.46

Finding the Fourth Proportional to 205,636,912.62, 308,506,421.71 and 102,054,731.46

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Solution

The fourth proportional to 205,636,912.62, 308,506,421.71 and 102,054,731.46 is: 153,107,433.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,636,912.62 : 308,506,421.71 = 102,054,731.46 : x
  2. Step 2: Convert to fraction form
    205,636,912.62/308,506,421.71 = 102,054,731.46/x
  3. Step 3: Cross multiply
    205,636,912.62x = 308,506,421.71 × 102,054,731.46
  4. Step 4: Simplify right side
    205,636,912.62x = 31,484,540,019,246,756
  5. Step 5: Solve for x
    x = 31,484,540,019,246,756/205,636,912.62
  6. Step 6: Final answer
    x = 153,107,433.97

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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.