Home / 531,780,021.10-733,978,873.48-311,834,305.90

Finding the Fourth Proportional to 531,780,021.10, 733,978,873.48 and 311,834,305.90

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Solution

The fourth proportional to 531,780,021.10, 733,978,873.48 and 311,834,305.90 is: 430,403,143.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,780,021.10 : 733,978,873.48 = 311,834,305.90 : x
  2. Step 2: Convert to fraction form
    531,780,021.10/733,978,873.48 = 311,834,305.90/x
  3. Step 3: Cross multiply
    531,780,021.10x = 733,978,873.48 × 311,834,305.90
  4. Step 4: Simplify right side
    531,780,021.10x = 228,879,792,556,899,712
  5. Step 5: Solve for x
    x = 228,879,792,556,899,712/531,780,021.10
  6. Step 6: Final answer
    x = 430,403,143.17

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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.