Home / 9,139,780.89-13,699,012.14-6,721,199.46

Finding the Fourth Proportional to 9,139,780.89, 13,699,012.14 and 6,721,199.46

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Solution

The fourth proportional to 9,139,780.89, 13,699,012.14 and 6,721,199.46 is: 10,073,960.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,139,780.89 : 13,699,012.14 = 6,721,199.46 : x
  2. Step 2: Convert to fraction form
    9,139,780.89/13,699,012.14 = 6,721,199.46/x
  3. Step 3: Cross multiply
    9,139,780.89x = 13,699,012.14 × 6,721,199.46
  4. Step 4: Simplify right side
    9,139,780.89x = 92,073,792,997,901.45
  5. Step 5: Solve for x
    x = 92,073,792,997,901.45/9,139,780.89
  6. Step 6: Final answer
    x = 10,073,960.65

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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.