Home / 7,020,475.41-10,531,107.05-1,971,392.25

Finding the Fourth Proportional to 7,020,475.41, 10,531,107.05 and 1,971,392.25

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Solution

The fourth proportional to 7,020,475.41, 10,531,107.05 and 1,971,392.25 is: 2,957,198.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,020,475.41 : 10,531,107.05 = 1,971,392.25 : x
  2. Step 2: Convert to fraction form
    7,020,475.41/10,531,107.05 = 1,971,392.25/x
  3. Step 3: Cross multiply
    7,020,475.41x = 10,531,107.05 × 1,971,392.25
  4. Step 4: Simplify right side
    7,020,475.41x = 20,760,942,812,433.40
  5. Step 5: Solve for x
    x = 20,760,942,812,433.40/7,020,475.41
  6. Step 6: Final answer
    x = 2,957,198.99

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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.