Home / 659,633,111.20-989,449,666.80-504,664,915.60

Finding the Fourth Proportional to 659,633,111.20, 989,449,666.80 and 504,664,915.60

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Solution

The fourth proportional to 659,633,111.20, 989,449,666.80 and 504,664,915.60 is: 756,997,373.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,633,111.20 : 989,449,666.80 = 504,664,915.60 : x
  2. Step 2: Convert to fraction form
    659,633,111.20/989,449,666.80 = 504,664,915.60/x
  3. Step 3: Cross multiply
    659,633,111.20x = 989,449,666.80 × 504,664,915.60
  4. Step 4: Simplify right side
    659,633,111.20x = 499,340,532,586,070,144
  5. Step 5: Solve for x
    x = 499,340,532,586,070,144/659,633,111.20
  6. Step 6: Final answer
    x = 756,997,373.40

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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.