Home / 77,273,403.40-115,910,105.10-57,999,809.80

Finding the Fourth Proportional to 77,273,403.40, 115,910,105.10 and 57,999,809.80

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Solution

The fourth proportional to 77,273,403.40, 115,910,105.10 and 57,999,809.80 is: 86,999,714.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,273,403.40 : 115,910,105.10 = 57,999,809.80 : x
  2. Step 2: Convert to fraction form
    77,273,403.40/115,910,105.10 = 57,999,809.80/x
  3. Step 3: Cross multiply
    77,273,403.40x = 115,910,105.10 × 57,999,809.80
  4. Step 4: Simplify right side
    77,273,403.40x = 6,722,764,049,698,009
  5. Step 5: Solve for x
    x = 6,722,764,049,698,009/77,273,403.40
  6. Step 6: Final answer
    x = 86,999,714.70

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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.