Home / 664,302,541.60-996,453,812.40-387,669,786.40

Finding the Fourth Proportional to 664,302,541.60, 996,453,812.40 and 387,669,786.40

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Solution

The fourth proportional to 664,302,541.60, 996,453,812.40 and 387,669,786.40 is: 581,504,679.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,302,541.60 : 996,453,812.40 = 387,669,786.40 : x
  2. Step 2: Convert to fraction form
    664,302,541.60/996,453,812.40 = 387,669,786.40/x
  3. Step 3: Cross multiply
    664,302,541.60x = 996,453,812.40 × 387,669,786.40
  4. Step 4: Simplify right side
    664,302,541.60x = 386,295,036,610,573,632
  5. Step 5: Solve for x
    x = 386,295,036,610,573,632/664,302,541.60
  6. Step 6: Final answer
    x = 581,504,679.60

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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.