Home / 12,636,857.67-18,951,670.67-4,117,938.63

Finding the Fourth Proportional to 12,636,857.67, 18,951,670.67 and 4,117,938.63

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Solution

The fourth proportional to 12,636,857.67, 18,951,670.67 and 4,117,938.63 is: 6,175,729.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,636,857.67 : 18,951,670.67 = 4,117,938.63 : x
  2. Step 2: Convert to fraction form
    12,636,857.67/18,951,670.67 = 4,117,938.63/x
  3. Step 3: Cross multiply
    12,636,857.67x = 18,951,670.67 × 4,117,938.63
  4. Step 4: Simplify right side
    12,636,857.67x = 78,041,816,734,441.28
  5. Step 5: Solve for x
    x = 78,041,816,734,441.28/12,636,857.67
  6. Step 6: Final answer
    x = 6,175,729.66

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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.