Home / 137,648,028.72-189,959,292.24-74,921,096.16

Finding the Fourth Proportional to 137,648,028.72, 189,959,292.24 and 74,921,096.16

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Solution

The fourth proportional to 137,648,028.72, 189,959,292.24 and 74,921,096.16 is: 103,393,841.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,648,028.72 : 189,959,292.24 = 74,921,096.16 : x
  2. Step 2: Convert to fraction form
    137,648,028.72/189,959,292.24 = 74,921,096.16/x
  3. Step 3: Cross multiply
    137,648,028.72x = 189,959,292.24 × 74,921,096.16
  4. Step 4: Simplify right side
    137,648,028.72x = 14,231,958,400,398,582
  5. Step 5: Solve for x
    x = 14,231,958,400,398,582/137,648,028.72
  6. Step 6: Final answer
    x = 103,393,841.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.