Home / 523,396,831.34-722,287,740.98-285,242,072.20

Finding the Fourth Proportional to 523,396,831.34, 722,287,740.98 and 285,242,072.20

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Solution

The fourth proportional to 523,396,831.34, 722,287,740.98 and 285,242,072.20 is: 393,634,121.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,396,831.34 : 722,287,740.98 = 285,242,072.20 : x
  2. Step 2: Convert to fraction form
    523,396,831.34/722,287,740.98 = 285,242,072.20/x
  3. Step 3: Cross multiply
    523,396,831.34x = 722,287,740.98 × 285,242,072.20
  4. Step 4: Simplify right side
    523,396,831.34x = 206,026,851,961,792,064
  5. Step 5: Solve for x
    x = 206,026,851,961,792,064/523,396,831.34
  6. Step 6: Final answer
    x = 393,634,121.62

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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.