Home / 312,239,434.24-430,889,996.64-173,019,211.84

Finding the Fourth Proportional to 312,239,434.24, 430,889,996.64 and 173,019,211.84

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Solution

The fourth proportional to 312,239,434.24, 430,889,996.64 and 173,019,211.84 is: 238,766,278.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,239,434.24 : 430,889,996.64 = 173,019,211.84 : x
  2. Step 2: Convert to fraction form
    312,239,434.24/430,889,996.64 = 173,019,211.84/x
  3. Step 3: Cross multiply
    312,239,434.24x = 430,889,996.64 × 173,019,211.84
  4. Step 4: Simplify right side
    312,239,434.24x = 74,552,247,608,393,040
  5. Step 5: Solve for x
    x = 74,552,247,608,393,040/312,239,434.24
  6. Step 6: Final answer
    x = 238,766,278.16

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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.