Home / 122,525,212.72-169,079,873.72-66,769,444.78

Finding the Fourth Proportional to 122,525,212.72, 169,079,873.72 and 66,769,444.78

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Solution

The fourth proportional to 122,525,212.72, 169,079,873.72 and 66,769,444.78 is: 92,139,152.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,525,212.72 : 169,079,873.72 = 66,769,444.78 : x
  2. Step 2: Convert to fraction form
    122,525,212.72/169,079,873.72 = 66,769,444.78/x
  3. Step 3: Cross multiply
    122,525,212.72x = 169,079,873.72 × 66,769,444.78
  4. Step 4: Simplify right side
    122,525,212.72x = 11,289,369,290,577,666
  5. Step 5: Solve for x
    x = 11,289,369,290,577,666/122,525,212.72
  6. Step 6: Final answer
    x = 92,139,152.75

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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.