Home / 659,736,611.59-989,125,110.19-309,802,361.87

Finding the Fourth Proportional to 659,736,611.59, 989,125,110.19 and 309,802,361.87

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Solution

The fourth proportional to 659,736,611.59, 989,125,110.19 and 309,802,361.87 is: 464,478,232.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,736,611.59 : 989,125,110.19 = 309,802,361.87 : x
  2. Step 2: Convert to fraction form
    659,736,611.59/989,125,110.19 = 309,802,361.87/x
  3. Step 3: Cross multiply
    659,736,611.59x = 989,125,110.19 × 309,802,361.87
  4. Step 4: Simplify right side
    659,736,611.59x = 306,433,295,321,786,048
  5. Step 5: Solve for x
    x = 306,433,295,321,786,048/659,736,611.59
  6. Step 6: Final answer
    x = 464,478,232.58

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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.