Home / 122,477,420.78-169,018,544.75-66,723,299.34

Finding the Fourth Proportional to 122,477,420.78, 169,018,544.75 and 66,723,299.34

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Solution

The fourth proportional to 122,477,420.78, 169,018,544.75 and 66,723,299.34 is: 92,077,991.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,477,420.78 : 169,018,544.75 = 66,723,299.34 : x
  2. Step 2: Convert to fraction form
    122,477,420.78/169,018,544.75 = 66,723,299.34/x
  3. Step 3: Cross multiply
    122,477,420.78x = 169,018,544.75 × 66,723,299.34
  4. Step 4: Simplify right side
    122,477,420.78x = 11,277,474,955,282,032
  5. Step 5: Solve for x
    x = 11,277,474,955,282,032/122,477,420.78
  6. Step 6: Final answer
    x = 92,077,991.87

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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.