Home / 232,590,647.48-320,977,246.12-128,172,455.60

Finding the Fourth Proportional to 232,590,647.48, 320,977,246.12 and 128,172,455.60

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Solution

The fourth proportional to 232,590,647.48, 320,977,246.12 and 128,172,455.60 is: 176,879,174.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,590,647.48 : 320,977,246.12 = 128,172,455.60 : x
  2. Step 2: Convert to fraction form
    232,590,647.48/320,977,246.12 = 128,172,455.60/x
  3. Step 3: Cross multiply
    232,590,647.48x = 320,977,246.12 × 128,172,455.60
  4. Step 4: Simplify right side
    232,590,647.48x = 41,140,441,825,000,656
  5. Step 5: Solve for x
    x = 41,140,441,825,000,656/232,590,647.48
  6. Step 6: Final answer
    x = 176,879,174.94

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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.