Home / 18,457,279.32-27,691,833.44-12,923,579.28

Finding the Fourth Proportional to 18,457,279.32, 27,691,833.44 and 12,923,579.28

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Solution

The fourth proportional to 18,457,279.32, 27,691,833.44 and 12,923,579.28 is: 19,389,510.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,457,279.32 : 27,691,833.44 = 12,923,579.28 : x
  2. Step 2: Convert to fraction form
    18,457,279.32/27,691,833.44 = 12,923,579.28/x
  3. Step 3: Cross multiply
    18,457,279.32x = 27,691,833.44 × 12,923,579.28
  4. Step 4: Simplify right side
    18,457,279.32x = 357,877,604,870,395.12
  5. Step 5: Solve for x
    x = 357,877,604,870,395.12/18,457,279.32
  6. Step 6: Final answer
    x = 19,389,510.16

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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.