Home / 20,408,215.94-28,163,335.47-11,240,858.69

Finding the Fourth Proportional to 20,408,215.94, 28,163,335.47 and 11,240,858.69

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Solution

The fourth proportional to 20,408,215.94, 28,163,335.47 and 11,240,858.69 is: 15,512,383.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,408,215.94 : 28,163,335.47 = 11,240,858.69 : x
  2. Step 2: Convert to fraction form
    20,408,215.94/28,163,335.47 = 11,240,858.69/x
  3. Step 3: Cross multiply
    20,408,215.94x = 28,163,335.47 × 11,240,858.69
  4. Step 4: Simplify right side
    20,408,215.94x = 316,580,074,257,334.69
  5. Step 5: Solve for x
    x = 316,580,074,257,334.69/20,408,215.94
  6. Step 6: Final answer
    x = 15,512,383.60

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1.5x scale

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.