Home / 137,309,154.78-189,536,355.88-90,914,355.48

Finding the Fourth Proportional to 137,309,154.78, 189,536,355.88 and 90,914,355.48

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Solution

The fourth proportional to 137,309,154.78, 189,536,355.88 and 90,914,355.48 is: 125,494,732.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,309,154.78 : 189,536,355.88 = 90,914,355.48 : x
  2. Step 2: Convert to fraction form
    137,309,154.78/189,536,355.88 = 90,914,355.48/x
  3. Step 3: Cross multiply
    137,309,154.78x = 189,536,355.88 × 90,914,355.48
  4. Step 4: Simplify right side
    137,309,154.78x = 17,231,575,634,858,108
  5. Step 5: Solve for x
    x = 17,231,575,634,858,108/137,309,154.78
  6. Step 6: Final answer
    x = 125,494,732.40

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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.