Home / 126,062,678.48-189,039,096.12-66,962,123.60

Finding the Fourth Proportional to 126,062,678.48, 189,039,096.12 and 66,962,123.60

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Solution

The fourth proportional to 126,062,678.48, 189,039,096.12 and 66,962,123.60 is: 100,414,012.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,062,678.48 : 189,039,096.12 = 66,962,123.60 : x
  2. Step 2: Convert to fraction form
    126,062,678.48/189,039,096.12 = 66,962,123.60/x
  3. Step 3: Cross multiply
    126,062,678.48x = 189,039,096.12 × 66,962,123.60
  4. Step 4: Simplify right side
    126,062,678.48x = 12,658,459,319,619,722
  5. Step 5: Solve for x
    x = 12,658,459,319,619,722/126,062,678.48
  6. Step 6: Final answer
    x = 100,414,012.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.