Home / 13,563,029.32-18,706,155.60-8,921,581.12

Finding the Fourth Proportional to 13,563,029.32, 18,706,155.60 and 8,921,581.12

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Solution

The fourth proportional to 13,563,029.32, 18,706,155.60 and 8,921,581.12 is: 12,304,661.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,563,029.32 : 18,706,155.60 = 8,921,581.12 : x
  2. Step 2: Convert to fraction form
    13,563,029.32/18,706,155.60 = 8,921,581.12/x
  3. Step 3: Cross multiply
    13,563,029.32x = 18,706,155.60 × 8,921,581.12
  4. Step 4: Simplify right side
    13,563,029.32x = 166,888,484,628,742.28
  5. Step 5: Solve for x
    x = 166,888,484,628,742.28/13,563,029.32
  6. Step 6: Final answer
    x = 12,304,661.49

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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.