Home / 285,388,792.39-393,829,835.11-167,921,730.96

Finding the Fourth Proportional to 285,388,792.39, 393,829,835.11 and 167,921,730.96

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Solution

The fourth proportional to 285,388,792.39, 393,829,835.11 and 167,921,730.96 is: 231,728,047.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,388,792.39 : 393,829,835.11 = 167,921,730.96 : x
  2. Step 2: Convert to fraction form
    285,388,792.39/393,829,835.11 = 167,921,730.96/x
  3. Step 3: Cross multiply
    285,388,792.39x = 393,829,835.11 × 167,921,730.96
  4. Step 4: Simplify right side
    285,388,792.39x = 66,132,587,614,409,640
  5. Step 5: Solve for x
    x = 66,132,587,614,409,640/285,388,792.39
  6. Step 6: Final answer
    x = 231,728,047.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.