Home / 523,396,830.34-722,287,739.60-285,242,071.20

Finding the Fourth Proportional to 523,396,830.34, 722,287,739.60 and 285,242,071.20

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Solution

The fourth proportional to 523,396,830.34, 722,287,739.60 and 285,242,071.20 is: 393,634,120.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,396,830.34 : 722,287,739.60 = 285,242,071.20 : x
  2. Step 2: Convert to fraction form
    523,396,830.34/722,287,739.60 = 285,242,071.20/x
  3. Step 3: Cross multiply
    523,396,830.34x = 722,287,739.60 × 285,242,071.20
  4. Step 4: Simplify right side
    523,396,830.34x = 206,026,850,845,870,272
  5. Step 5: Solve for x
    x = 206,026,850,845,870,272/523,396,830.34
  6. Step 6: Final answer
    x = 393,634,120.24

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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.