Home / 121,515,852-167,693,450.40-66,510,527.52

Finding the Fourth Proportional to 121,515,852, 167,693,450.40 and 66,510,527.52

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Solution

The fourth proportional to 121,515,852, 167,693,450.40 and 66,510,527.52 is: 91,785,389.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,515,852 : 167,693,450.40 = 66,510,527.52 : x
  2. Step 2: Convert to fraction form
    121,515,852/167,693,450.40 = 66,510,527.52/x
  3. Step 3: Cross multiply
    121,515,852x = 167,693,450.40 × 66,510,527.52
  4. Step 4: Simplify right side
    121,515,852x = 11,153,379,847,752,956
  5. Step 5: Solve for x
    x = 11,153,379,847,752,956/121,515,852
  6. Step 6: Final answer
    x = 91,785,389.84

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1.5x scale

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.