Home / 7,870,155.53-10,865,829.26-6,423,302.21

Finding the Fourth Proportional to 7,870,155.53, 10,865,829.26 and 6,423,302.21

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Solution

The fourth proportional to 7,870,155.53, 10,865,829.26 and 6,423,302.21 is: 8,868,249.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,870,155.53 : 10,865,829.26 = 6,423,302.21 : x
  2. Step 2: Convert to fraction form
    7,870,155.53/10,865,829.26 = 6,423,302.21/x
  3. Step 3: Cross multiply
    7,870,155.53x = 10,865,829.26 × 6,423,302.21
  4. Step 4: Simplify right side
    7,870,155.53x = 69,794,505,099,240.66
  5. Step 5: Solve for x
    x = 69,794,505,099,240.66/7,870,155.53
  6. Step 6: Final answer
    x = 8,868,249.79

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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.