Home / 298,576,680,521.30-448,183,734,387.40-128,680,114,128.66

Finding the Fourth Proportional to 298,576,680,521.30, 448,183,734,387.40 and 128,680,114,128.66

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Solution

The fourth proportional to 298,576,680,521.30, 448,183,734,387.40 and 128,680,114,128.66 is: 193,157,529,887.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,576,680,521.30 : 448,183,734,387.40 = 128,680,114,128.66 : x
  2. Step 2: Convert to fraction form
    298,576,680,521.30/448,183,734,387.40 = 128,680,114,128.66/x
  3. Step 3: Cross multiply
    298,576,680,521.30x = 448,183,734,387.40 × 128,680,114,128.66
  4. Step 4: Simplify right side
    298,576,680,521.30x = 57,672,334,091,579,673,280,512
  5. Step 5: Solve for x
    x = 57,672,334,091,579,673,280,512/298,576,680,521.30
  6. Step 6: Final answer
    x = 193,157,529,887.76

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1.5x scale

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.