Home / 679,954,807.70-1,019,932,211.55-220,222,913.30

Finding the Fourth Proportional to 679,954,807.70, 1,019,932,211.55 and 220,222,913.30

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Solution

The fourth proportional to 679,954,807.70, 1,019,932,211.55 and 220,222,913.30 is: 330,334,369.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,954,807.70 : 1,019,932,211.55 = 220,222,913.30 : x
  2. Step 2: Convert to fraction form
    679,954,807.70/1,019,932,211.55 = 220,222,913.30/x
  3. Step 3: Cross multiply
    679,954,807.70x = 1,019,932,211.55 × 220,222,913.30
  4. Step 4: Simplify right side
    679,954,807.70x = 224,612,442,996,052,896
  5. Step 5: Solve for x
    x = 224,612,442,996,052,896/679,954,807.70
  6. Step 6: Final answer
    x = 330,334,369.95

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Double scale
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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.