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Finding the Fourth Proportional to 320,084,435.52, 480,126,659.04 and 77,745,706.56

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Solution

The fourth proportional to 320,084,435.52, 480,126,659.04 and 77,745,706.56 is: 116,618,561.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,084,435.52 : 480,126,659.04 = 77,745,706.56 : x
  2. Step 2: Convert to fraction form
    320,084,435.52/480,126,659.04 = 77,745,706.56/x
  3. Step 3: Cross multiply
    320,084,435.52x = 480,126,659.04 × 77,745,706.56
  4. Step 4: Simplify right side
    320,084,435.52x = 37,327,786,345,357,016
  5. Step 5: Solve for x
    x = 37,327,786,345,357,016/320,084,435.52
  6. Step 6: Final answer
    x = 116,618,561.24

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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.