Home / 320,879,379.60-480,534,091.92-289,824,796.08

Finding the Fourth Proportional to 320,879,379.60, 480,534,091.92 and 289,824,796.08

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Solution

The fourth proportional to 320,879,379.60, 480,534,091.92 and 289,824,796.08 is: 434,028,186.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,879,379.60 : 480,534,091.92 = 289,824,796.08 : x
  2. Step 2: Convert to fraction form
    320,879,379.60/480,534,091.92 = 289,824,796.08/x
  3. Step 3: Cross multiply
    320,879,379.60x = 480,534,091.92 × 289,824,796.08
  4. Step 4: Simplify right side
    320,879,379.60x = 139,270,695,200,201,968
  5. Step 5: Solve for x
    x = 139,270,695,200,201,968/320,879,379.60
  6. Step 6: Final answer
    x = 434,028,186.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.