Home / 298,576,680,844.32-448,183,734,871.95-128,680,114,451.94

Finding the Fourth Proportional to 298,576,680,844.32, 448,183,734,871.95 and 128,680,114,451.94

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Solution

The fourth proportional to 298,576,680,844.32, 448,183,734,871.95 and 128,680,114,451.94 is: 193,157,530,372.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,576,680,844.32 : 448,183,734,871.95 = 128,680,114,451.94 : x
  2. Step 2: Convert to fraction form
    298,576,680,844.32/448,183,734,871.95 = 128,680,114,451.94/x
  3. Step 3: Cross multiply
    298,576,680,844.32x = 448,183,734,871.95 × 128,680,114,451.94
  4. Step 4: Simplify right side
    298,576,680,844.32x = 57,672,334,298,820,460,412,928
  5. Step 5: Solve for x
    x = 57,672,334,298,820,460,412,928/298,576,680,844.32
  6. Step 6: Final answer
    x = 193,157,530,372.88

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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.