Home / 864,388,698.12-1,296,179,381.52-311,618,324.52

Finding the Fourth Proportional to 864,388,698.12, 1,296,179,381.52 and 311,618,324.52

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Solution

The fourth proportional to 864,388,698.12, 1,296,179,381.52 and 311,618,324.52 is: 467,281,962.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,388,698.12 : 1,296,179,381.52 = 311,618,324.52 : x
  2. Step 2: Convert to fraction form
    864,388,698.12/1,296,179,381.52 = 311,618,324.52/x
  3. Step 3: Cross multiply
    864,388,698.12x = 1,296,179,381.52 × 311,618,324.52
  4. Step 4: Simplify right side
    864,388,698.12x = 403,913,247,146,632,192
  5. Step 5: Solve for x
    x = 403,913,247,146,632,192/864,388,698.12
  6. Step 6: Final answer
    x = 467,281,962.41

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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.