Home / 523,396,835.34-722,287,746.51-285,242,076.21

Finding the Fourth Proportional to 523,396,835.34, 722,287,746.51 and 285,242,076.21

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Solution

The fourth proportional to 523,396,835.34, 722,287,746.51 and 285,242,076.21 is: 393,634,127.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,396,835.34 : 722,287,746.51 = 285,242,076.21 : x
  2. Step 2: Convert to fraction form
    523,396,835.34/722,287,746.51 = 285,242,076.21/x
  3. Step 3: Cross multiply
    523,396,835.34x = 722,287,746.51 × 285,242,076.21
  4. Step 4: Simplify right side
    523,396,835.34x = 206,026,856,435,554,560
  5. Step 5: Solve for x
    x = 206,026,856,435,554,560/523,396,835.34
  6. Step 6: Final answer
    x = 393,634,127.16

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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.