Home / 13,338,056.79-18,400,882.10-8,929,202.90

Finding the Fourth Proportional to 13,338,056.79, 18,400,882.10 and 8,929,202.90

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Solution

The fourth proportional to 13,338,056.79, 18,400,882.10 and 8,929,202.90 is: 12,318,526.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,338,056.79 : 18,400,882.10 = 8,929,202.90 : x
  2. Step 2: Convert to fraction form
    13,338,056.79/18,400,882.10 = 8,929,202.90/x
  3. Step 3: Cross multiply
    13,338,056.79x = 18,400,882.10 × 8,929,202.90
  4. Step 4: Simplify right side
    13,338,056.79x = 164,305,209,740,196.66
  5. Step 5: Solve for x
    x = 164,305,209,740,196.66/13,338,056.79
  6. Step 6: Final answer
    x = 12,318,526.78

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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.