Home / 380,117,538.46-570,260,288.50-137,774,143.90

Finding the Fourth Proportional to 380,117,538.46, 570,260,288.50 and 137,774,143.90

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Solution

The fourth proportional to 380,117,538.46, 570,260,288.50 and 137,774,143.90 is: 206,691,654.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,117,538.46 : 570,260,288.50 = 137,774,143.90 : x
  2. Step 2: Convert to fraction form
    380,117,538.46/570,260,288.50 = 137,774,143.90/x
  3. Step 3: Cross multiply
    380,117,538.46x = 570,260,288.50 × 137,774,143.90
  4. Step 4: Simplify right side
    380,117,538.46x = 78,567,123,048,254,512
  5. Step 5: Solve for x
    x = 78,567,123,048,254,512/380,117,538.46
  6. Step 6: Final answer
    x = 206,691,654.81

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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.