Home / 5,378,571.60-7,422,212.40-2,931,130.32

Finding the Fourth Proportional to 5,378,571.60, 7,422,212.40 and 2,931,130.32

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Solution

The fourth proportional to 5,378,571.60, 7,422,212.40 and 2,931,130.32 is: 4,044,841.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,378,571.60 : 7,422,212.40 = 2,931,130.32 : x
  2. Step 2: Convert to fraction form
    5,378,571.60/7,422,212.40 = 2,931,130.32/x
  3. Step 3: Cross multiply
    5,378,571.60x = 7,422,212.40 × 2,931,130.32
  4. Step 4: Simplify right side
    5,378,571.60x = 21,755,471,807,119.97
  5. Step 5: Solve for x
    x = 21,755,471,807,119.97/5,378,571.60
  6. Step 6: Final answer
    x = 4,044,841.91

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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.