Home / 137,105,523.48-189,205,989.16-74,381,621.30

Finding the Fourth Proportional to 137,105,523.48, 189,205,989.16 and 74,381,621.30

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Solution

The fourth proportional to 137,105,523.48, 189,205,989.16 and 74,381,621.30 is: 102,646,836.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,105,523.48 : 189,205,989.16 = 74,381,621.30 : x
  2. Step 2: Convert to fraction form
    137,105,523.48/189,205,989.16 = 74,381,621.30/x
  3. Step 3: Cross multiply
    137,105,523.48x = 189,205,989.16 × 74,381,621.30
  4. Step 4: Simplify right side
    137,105,523.48x = 14,073,448,233,391,024
  5. Step 5: Solve for x
    x = 14,073,448,233,391,024/137,105,523.48
  6. Step 6: Final answer
    x = 102,646,836.37

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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.