Home / 12,982,440.40-19,457,914.20-5,786,335.60

Finding the Fourth Proportional to 12,982,440.40, 19,457,914.20 and 5,786,335.60

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Solution

The fourth proportional to 12,982,440.40, 19,457,914.20 and 5,786,335.60 is: 8,672,485.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,982,440.40 : 19,457,914.20 = 5,786,335.60 : x
  2. Step 2: Convert to fraction form
    12,982,440.40/19,457,914.20 = 5,786,335.60/x
  3. Step 3: Cross multiply
    12,982,440.40x = 19,457,914.20 × 5,786,335.60
  4. Step 4: Simplify right side
    12,982,440.40x = 112,590,021,637,205.52
  5. Step 5: Solve for x
    x = 112,590,021,637,205.52/12,982,440.40
  6. Step 6: Final answer
    x = 8,672,485.15

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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.