Home / 260,146,399.32-390,219,183.18-143,556,116.76

Finding the Fourth Proportional to 260,146,399.32, 390,219,183.18 and 143,556,116.76

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Solution

The fourth proportional to 260,146,399.32, 390,219,183.18 and 143,556,116.76 is: 215,333,945.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,146,399.32 : 390,219,183.18 = 143,556,116.76 : x
  2. Step 2: Convert to fraction form
    260,146,399.32/390,219,183.18 = 143,556,116.76/x
  3. Step 3: Cross multiply
    260,146,399.32x = 390,219,183.18 × 143,556,116.76
  4. Step 4: Simplify right side
    260,146,399.32x = 56,018,350,622,579,904
  5. Step 5: Solve for x
    x = 56,018,350,622,579,904/260,146,399.32
  6. Step 6: Final answer
    x = 215,333,945.69

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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.