Home / 122,525,215.76-169,079,877.90-66,769,447.81

Finding the Fourth Proportional to 122,525,215.76, 169,079,877.90 and 66,769,447.81

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Solution

The fourth proportional to 122,525,215.76, 169,079,877.90 and 66,769,447.81 is: 92,139,156.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,525,215.76 : 169,079,877.90 = 66,769,447.81 : x
  2. Step 2: Convert to fraction form
    122,525,215.76/169,079,877.90 = 66,769,447.81/x
  3. Step 3: Cross multiply
    122,525,215.76x = 169,079,877.90 × 66,769,447.81
  4. Step 4: Simplify right side
    122,525,215.76x = 11,289,370,083,165,224
  5. Step 5: Solve for x
    x = 11,289,370,083,165,224/122,525,215.76
  6. Step 6: Final answer
    x = 92,139,156.93

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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.