Home / 131,345,845.60-197,018,768.40-82,972,904.80

Finding the Fourth Proportional to 131,345,845.60, 197,018,768.40 and 82,972,904.80

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Solution

The fourth proportional to 131,345,845.60, 197,018,768.40 and 82,972,904.80 is: 124,459,357.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,345,845.60 : 197,018,768.40 = 82,972,904.80 : x
  2. Step 2: Convert to fraction form
    131,345,845.60/197,018,768.40 = 82,972,904.80/x
  3. Step 3: Cross multiply
    131,345,845.60x = 197,018,768.40 × 82,972,904.80
  4. Step 4: Simplify right side
    131,345,845.60x = 16,347,219,514,266,448
  5. Step 5: Solve for x
    x = 16,347,219,514,266,448/131,345,845.60
  6. Step 6: Final answer
    x = 124,459,357.20

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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.