Home / 7,205,722.38-10,834,509.78-6,643,975.68

Finding the Fourth Proportional to 7,205,722.38, 10,834,509.78 and 6,643,975.68

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Solution

The fourth proportional to 7,205,722.38, 10,834,509.78 and 6,643,975.68 is: 9,989,868.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,205,722.38 : 10,834,509.78 = 6,643,975.68 : x
  2. Step 2: Convert to fraction form
    7,205,722.38/10,834,509.78 = 6,643,975.68/x
  3. Step 3: Cross multiply
    7,205,722.38x = 10,834,509.78 × 6,643,975.68
  4. Step 4: Simplify right side
    7,205,722.38x = 71,984,219,483,042.14
  5. Step 5: Solve for x
    x = 71,984,219,483,042.14/7,205,722.38
  6. Step 6: Final answer
    x = 9,989,868.56

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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.