Home / 5,378,758.83-7,422,470.51-2,931,317.20

Finding the Fourth Proportional to 5,378,758.83, 7,422,470.51 and 2,931,317.20

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Solution

The fourth proportional to 5,378,758.83, 7,422,470.51 and 2,931,317.20 is: 4,045,099.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,378,758.83 : 7,422,470.51 = 2,931,317.20 : x
  2. Step 2: Convert to fraction form
    5,378,758.83/7,422,470.51 = 2,931,317.20/x
  3. Step 3: Cross multiply
    5,378,758.83x = 7,422,470.51 × 2,931,317.20
  4. Step 4: Simplify right side
    5,378,758.83x = 21,757,615,467,077.27
  5. Step 5: Solve for x
    x = 21,757,615,467,077.27/5,378,758.83
  6. Step 6: Final answer
    x = 4,045,099.65

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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.