Home / 186,731,100.24-280,110,102.90-71,715,642.72

Finding the Fourth Proportional to 186,731,100.24, 280,110,102.90 and 71,715,642.72

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Solution

The fourth proportional to 186,731,100.24, 280,110,102.90 and 71,715,642.72 is: 107,578,630.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,731,100.24 : 280,110,102.90 = 71,715,642.72 : x
  2. Step 2: Convert to fraction form
    186,731,100.24/280,110,102.90 = 71,715,642.72/x
  3. Step 3: Cross multiply
    186,731,100.24x = 280,110,102.90 × 71,715,642.72
  4. Step 4: Simplify right side
    186,731,100.24x = 20,088,276,061,838,832
  5. Step 5: Solve for x
    x = 20,088,276,061,838,832/186,731,100.24
  6. Step 6: Final answer
    x = 107,578,630.64

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.