Home / 7,021,351-9,689,500.20-3,923,926.06

Finding the Fourth Proportional to 7,021,351, 9,689,500.20 and 3,923,926.06

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Solution

The fourth proportional to 7,021,351, 9,689,500.20 and 3,923,926.06 is: 5,415,037.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,021,351 : 9,689,500.20 = 3,923,926.06 : x
  2. Step 2: Convert to fraction form
    7,021,351/9,689,500.20 = 3,923,926.06/x
  3. Step 3: Cross multiply
    7,021,351x = 9,689,500.20 × 3,923,926.06
  4. Step 4: Simplify right side
    7,021,351x = 38,020,882,343,155.21
  5. Step 5: Solve for x
    x = 38,020,882,343,155.21/7,021,351
  6. Step 6: Final answer
    x = 5,415,037.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.