Home / 131,345,841.60-197,018,762.40-82,972,900.80

Finding the Fourth Proportional to 131,345,841.60, 197,018,762.40 and 82,972,900.80

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Solution

The fourth proportional to 131,345,841.60, 197,018,762.40 and 82,972,900.80 is: 124,459,351.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,345,841.60 : 197,018,762.40 = 82,972,900.80 : x
  2. Step 2: Convert to fraction form
    131,345,841.60/197,018,762.40 = 82,972,900.80/x
  3. Step 3: Cross multiply
    131,345,841.60x = 197,018,762.40 × 82,972,900.80
  4. Step 4: Simplify right side
    131,345,841.60x = 16,347,218,228,353,970
  5. Step 5: Solve for x
    x = 16,347,218,228,353,970/131,345,841.60
  6. Step 6: Final answer
    x = 124,459,351.20

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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.