Home / 290,656,654,216.32-435,983,151,838.83-156,414,378,609.78

Finding the Fourth Proportional to 290,656,654,216.32, 435,983,151,838.83 and 156,414,378,609.78

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Solution

The fourth proportional to 290,656,654,216.32, 435,983,151,838.83 and 156,414,378,609.78 is: 234,620,583,392.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,656,654,216.32 : 435,983,151,838.83 = 156,414,378,609.78 : x
  2. Step 2: Convert to fraction form
    290,656,654,216.32/435,983,151,838.83 = 156,414,378,609.78/x
  3. Step 3: Cross multiply
    290,656,654,216.32x = 435,983,151,838.83 × 156,414,378,609.78
  4. Step 4: Simplify right side
    290,656,654,216.32x = 68,194,033,779,203,958,112,256
  5. Step 5: Solve for x
    x = 68,194,033,779,203,958,112,256/290,656,654,216.32
  6. Step 6: Final answer
    x = 234,620,583,392.70

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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.