Home / 217,631,000.40-326,021,347.80-131,112,405.60

Finding the Fourth Proportional to 217,631,000.40, 326,021,347.80 and 131,112,405.60

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Solution

The fourth proportional to 217,631,000.40, 326,021,347.80 and 131,112,405.60 is: 196,412,473.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,631,000.40 : 326,021,347.80 = 131,112,405.60 : x
  2. Step 2: Convert to fraction form
    217,631,000.40/326,021,347.80 = 131,112,405.60/x
  3. Step 3: Cross multiply
    217,631,000.40x = 326,021,347.80 × 131,112,405.60
  4. Step 4: Simplify right side
    217,631,000.40x = 42,745,443,187,012,264
  5. Step 5: Solve for x
    x = 42,745,443,187,012,264/217,631,000.40
  6. Step 6: Final answer
    x = 196,412,473.91

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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.