Home / 320,084,441.52-480,126,668.04-77,745,712.56

Finding the Fourth Proportional to 320,084,441.52, 480,126,668.04 and 77,745,712.56

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Solution

The fourth proportional to 320,084,441.52, 480,126,668.04 and 77,745,712.56 is: 116,618,570.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,084,441.52 : 480,126,668.04 = 77,745,712.56 : x
  2. Step 2: Convert to fraction form
    320,084,441.52/480,126,668.04 = 77,745,712.56/x
  3. Step 3: Cross multiply
    320,084,441.52x = 480,126,668.04 × 77,745,712.56
  4. Step 4: Simplify right side
    320,084,441.52x = 37,327,789,925,828,384
  5. Step 5: Solve for x
    x = 37,327,789,925,828,384/320,084,441.52
  6. Step 6: Final answer
    x = 116,618,570.24

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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.