Home / 13,705,917.77-18,914,188.75-7,509,979.91

Finding the Fourth Proportional to 13,705,917.77, 18,914,188.75 and 7,509,979.91

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Solution

The fourth proportional to 13,705,917.77, 18,914,188.75 and 7,509,979.91 is: 10,363,784.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,705,917.77 : 18,914,188.75 = 7,509,979.91 : x
  2. Step 2: Convert to fraction form
    13,705,917.77/18,914,188.75 = 7,509,979.91/x
  3. Step 3: Cross multiply
    13,705,917.77x = 18,914,188.75 × 7,509,979.91
  4. Step 4: Simplify right side
    13,705,917.77x = 142,045,177,413,102.12
  5. Step 5: Solve for x
    x = 142,045,177,413,102.12/13,705,917.77
  6. Step 6: Final answer
    x = 10,363,784.45

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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.