Home / 137,515,795.52-189,775,387.32-75,637,757.84

Finding the Fourth Proportional to 137,515,795.52, 189,775,387.32 and 75,637,757.84

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Solution

The fourth proportional to 137,515,795.52, 189,775,387.32 and 75,637,757.84 is: 104,382,080.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,515,795.52 : 189,775,387.32 = 75,637,757.84 : x
  2. Step 2: Convert to fraction form
    137,515,795.52/189,775,387.32 = 75,637,757.84/x
  3. Step 3: Cross multiply
    137,515,795.52x = 189,775,387.32 × 75,637,757.84
  4. Step 4: Simplify right side
    137,515,795.52x = 14,354,184,790,102,366
  5. Step 5: Solve for x
    x = 14,354,184,790,102,366/137,515,795.52
  6. Step 6: Final answer
    x = 104,382,080.15

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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.