Home / 7,039,931-9,715,104.78-3,820,667

Finding the Fourth Proportional to 7,039,931, 9,715,104.78 and 3,820,667

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Solution

The fourth proportional to 7,039,931, 9,715,104.78 and 3,820,667 is: 5,272,520.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,039,931 : 9,715,104.78 = 3,820,667 : x
  2. Step 2: Convert to fraction form
    7,039,931/9,715,104.78 = 3,820,667/x
  3. Step 3: Cross multiply
    7,039,931x = 9,715,104.78 × 3,820,667
  4. Step 4: Simplify right side
    7,039,931x = 37,118,180,234,488.26
  5. Step 5: Solve for x
    x = 37,118,180,234,488.26/7,039,931
  6. Step 6: Final answer
    x = 5,272,520.46

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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.