Home / 298,576,680,522.30-448,183,734,388.90-128,680,114,129.66

Finding the Fourth Proportional to 298,576,680,522.30, 448,183,734,388.90 and 128,680,114,129.66

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Solution

The fourth proportional to 298,576,680,522.30, 448,183,734,388.90 and 128,680,114,129.66 is: 193,157,529,889.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,576,680,522.30 : 448,183,734,388.90 = 128,680,114,129.66 : x
  2. Step 2: Convert to fraction form
    298,576,680,522.30/448,183,734,388.90 = 128,680,114,129.66/x
  3. Step 3: Cross multiply
    298,576,680,522.30x = 448,183,734,388.90 × 128,680,114,129.66
  4. Step 4: Simplify right side
    298,576,680,522.30x = 57,672,334,092,220,881,698,816
  5. Step 5: Solve for x
    x = 57,672,334,092,220,881,698,816/298,576,680,522.30
  6. Step 6: Final answer
    x = 193,157,529,889.26

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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.