Home / 12,931,417.20-19,396,422.60-3,955,969.20

Finding the Fourth Proportional to 12,931,417.20, 19,396,422.60 and 3,955,969.20

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Solution

The fourth proportional to 12,931,417.20, 19,396,422.60 and 3,955,969.20 is: 5,933,738.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,931,417.20 : 19,396,422.60 = 3,955,969.20 : x
  2. Step 2: Convert to fraction form
    12,931,417.20/19,396,422.60 = 3,955,969.20/x
  3. Step 3: Cross multiply
    12,931,417.20x = 19,396,422.60 × 3,955,969.20
  4. Step 4: Simplify right side
    12,931,417.20x = 76,731,650,395,783.92
  5. Step 5: Solve for x
    x = 76,731,650,395,783.92/12,931,417.20
  6. Step 6: Final answer
    x = 5,933,738.68

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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.