Home / 77,278,713.44-106,647,024.48-42,470,771.36

Finding the Fourth Proportional to 77,278,713.44, 106,647,024.48 and 42,470,771.36

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Solution

The fourth proportional to 77,278,713.44, 106,647,024.48 and 42,470,771.36 is: 58,610,983.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,278,713.44 : 106,647,024.48 = 42,470,771.36 : x
  2. Step 2: Convert to fraction form
    77,278,713.44/106,647,024.48 = 42,470,771.36/x
  3. Step 3: Cross multiply
    77,278,713.44x = 106,647,024.48 × 42,470,771.36
  4. Step 4: Simplify right side
    77,278,713.44x = 4,529,381,392,914,403
  5. Step 5: Solve for x
    x = 4,529,381,392,914,403/77,278,713.44
  6. Step 6: Final answer
    x = 58,610,983.43

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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.