Home / 13,772,212.92-18,975,515.22-9,118,101.96

Finding the Fourth Proportional to 13,772,212.92, 18,975,515.22 and 9,118,101.96

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Solution

The fourth proportional to 13,772,212.92, 18,975,515.22 and 9,118,101.96 is: 12,563,026.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,772,212.92 : 18,975,515.22 = 9,118,101.96 : x
  2. Step 2: Convert to fraction form
    13,772,212.92/18,975,515.22 = 9,118,101.96/x
  3. Step 3: Cross multiply
    13,772,212.92x = 18,975,515.22 × 9,118,101.96
  4. Step 4: Simplify right side
    13,772,212.92x = 173,020,682,519,491.84
  5. Step 5: Solve for x
    x = 173,020,682,519,491.84/13,772,212.92
  6. Step 6: Final answer
    x = 12,563,026.98

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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.