Home / 186,731,101.24-280,110,104.40-71,715,643.72

Finding the Fourth Proportional to 186,731,101.24, 280,110,104.40 and 71,715,643.72

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Solution

The fourth proportional to 186,731,101.24, 280,110,104.40 and 71,715,643.72 is: 107,578,632.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,731,101.24 : 280,110,104.40 = 71,715,643.72 : x
  2. Step 2: Convert to fraction form
    186,731,101.24/280,110,104.40 = 71,715,643.72/x
  3. Step 3: Cross multiply
    186,731,101.24x = 280,110,104.40 × 71,715,643.72
  4. Step 4: Simplify right side
    186,731,101.24x = 20,088,276,449,522,404
  5. Step 5: Solve for x
    x = 20,088,276,449,522,404/186,731,101.24
  6. Step 6: Final answer
    x = 107,578,632.14

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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.