Home / 398,998,211.96-598,554,437.22-122,672,628.36

Finding the Fourth Proportional to 398,998,211.96, 598,554,437.22 and 122,672,628.36

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Solution

The fourth proportional to 398,998,211.96, 598,554,437.22 and 122,672,628.36 is: 184,026,503.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,998,211.96 : 598,554,437.22 = 122,672,628.36 : x
  2. Step 2: Convert to fraction form
    398,998,211.96/598,554,437.22 = 122,672,628.36/x
  3. Step 3: Cross multiply
    398,998,211.96x = 598,554,437.22 × 122,672,628.36
  4. Step 4: Simplify right side
    398,998,211.96x = 73,426,246,030,318,016
  5. Step 5: Solve for x
    x = 73,426,246,030,318,016/398,998,211.96
  6. Step 6: Final answer
    x = 184,026,503.95

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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.