Home / 232,590,648.60-320,977,247.67-128,172,456.72

Finding the Fourth Proportional to 232,590,648.60, 320,977,247.67 and 128,172,456.72

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Solution

The fourth proportional to 232,590,648.60, 320,977,247.67 and 128,172,456.72 is: 176,879,176.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,590,648.60 : 320,977,247.67 = 128,172,456.72 : x
  2. Step 2: Convert to fraction form
    232,590,648.60/320,977,247.67 = 128,172,456.72/x
  3. Step 3: Cross multiply
    232,590,648.60x = 320,977,247.67 × 128,172,456.72
  4. Step 4: Simplify right side
    232,590,648.60x = 41,140,442,385,087,800
  5. Step 5: Solve for x
    x = 41,140,442,385,087,800/232,590,648.60
  6. Step 6: Final answer
    x = 176,879,176.50

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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.