Home / 309,765,713.87-427,507,564.84-231,313,064.85

Finding the Fourth Proportional to 309,765,713.87, 427,507,564.84 and 231,313,064.85

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Solution

The fourth proportional to 309,765,713.87, 427,507,564.84 and 231,313,064.85 is: 319,235,088.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,765,713.87 : 427,507,564.84 = 231,313,064.85 : x
  2. Step 2: Convert to fraction form
    309,765,713.87/427,507,564.84 = 231,313,064.85/x
  3. Step 3: Cross multiply
    309,765,713.87x = 427,507,564.84 × 231,313,064.85
  4. Step 4: Simplify right side
    309,765,713.87x = 98,888,085,069,122,208
  5. Step 5: Solve for x
    x = 98,888,085,069,122,208/309,765,713.87
  6. Step 6: Final answer
    x = 319,235,088.46

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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.