Home / 122,220,724.37-169,108,731.09-106,572,379.41

Finding the Fourth Proportional to 122,220,724.37, 169,108,731.09 and 106,572,379.41

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Solution

The fourth proportional to 122,220,724.37, 169,108,731.09 and 106,572,379.41 is: 147,457,151.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,220,724.37 : 169,108,731.09 = 106,572,379.41 : x
  2. Step 2: Convert to fraction form
    122,220,724.37/169,108,731.09 = 106,572,379.41/x
  3. Step 3: Cross multiply
    122,220,724.37x = 169,108,731.09 × 106,572,379.41
  4. Step 4: Simplify right side
    122,220,724.37x = 18,022,319,851,267,144
  5. Step 5: Solve for x
    x = 18,022,319,851,267,144/122,220,724.37
  6. Step 6: Final answer
    x = 147,457,151.35

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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.