Home / 186,731,102.24-280,110,105.90-71,715,644.72

Finding the Fourth Proportional to 186,731,102.24, 280,110,105.90 and 71,715,644.72

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Solution

The fourth proportional to 186,731,102.24, 280,110,105.90 and 71,715,644.72 is: 107,578,633.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,731,102.24 : 280,110,105.90 = 71,715,644.72 : x
  2. Step 2: Convert to fraction form
    186,731,102.24/280,110,105.90 = 71,715,644.72/x
  3. Step 3: Cross multiply
    186,731,102.24x = 280,110,105.90 × 71,715,644.72
  4. Step 4: Simplify right side
    186,731,102.24x = 20,088,276,837,205,972
  5. Step 5: Solve for x
    x = 20,088,276,837,205,972/186,731,102.24
  6. Step 6: Final answer
    x = 107,578,633.64

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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.