Home / 309,385,586.53-464,071,638.37-145,532,521.79

Finding the Fourth Proportional to 309,385,586.53, 464,071,638.37 and 145,532,521.79

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Solution

The fourth proportional to 309,385,586.53, 464,071,638.37 and 145,532,521.79 is: 218,295,611.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,385,586.53 : 464,071,638.37 = 145,532,521.79 : x
  2. Step 2: Convert to fraction form
    309,385,586.53/464,071,638.37 = 145,532,521.79/x
  3. Step 3: Cross multiply
    309,385,586.53x = 464,071,638.37 × 145,532,521.79
  4. Step 4: Simplify right side
    309,385,586.53x = 67,537,515,823,203,024
  5. Step 5: Solve for x
    x = 67,537,515,823,203,024/309,385,586.53
  6. Step 6: Final answer
    x = 218,295,611.57

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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.