Home / 18,457,279.45-27,691,833.63-12,923,579.41

Finding the Fourth Proportional to 18,457,279.45, 27,691,833.63 and 12,923,579.41

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Solution

The fourth proportional to 18,457,279.45, 27,691,833.63 and 12,923,579.41 is: 19,389,510.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,457,279.45 : 27,691,833.63 = 12,923,579.41 : x
  2. Step 2: Convert to fraction form
    18,457,279.45/27,691,833.63 = 12,923,579.41/x
  3. Step 3: Cross multiply
    18,457,279.45x = 27,691,833.63 × 12,923,579.41
  4. Step 4: Simplify right side
    18,457,279.45x = 357,877,610,755,045.44
  5. Step 5: Solve for x
    x = 357,877,610,755,045.44/18,457,279.45
  6. Step 6: Final answer
    x = 19,389,510.35

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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.