Home / 285,388,792.89-393,829,835.81-167,921,731.46

Finding the Fourth Proportional to 285,388,792.89, 393,829,835.81 and 167,921,731.46

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Solution

The fourth proportional to 285,388,792.89, 393,829,835.81 and 167,921,731.46 is: 231,728,048.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,388,792.89 : 393,829,835.81 = 167,921,731.46 : x
  2. Step 2: Convert to fraction form
    285,388,792.89/393,829,835.81 = 167,921,731.46/x
  3. Step 3: Cross multiply
    285,388,792.89x = 393,829,835.81 × 167,921,731.46
  4. Step 4: Simplify right side
    285,388,792.89x = 66,132,587,927,013,960
  5. Step 5: Solve for x
    x = 66,132,587,927,013,960/285,388,792.89
  6. Step 6: Final answer
    x = 231,728,048.10

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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.