Home / 137,179,764.34-189,308,282.18-74,455,884.82

Finding the Fourth Proportional to 137,179,764.34, 189,308,282.18 and 74,455,884.82

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Solution

The fourth proportional to 137,179,764.34, 189,308,282.18 and 74,455,884.82 is: 102,749,233.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,179,764.34 : 189,308,282.18 = 74,455,884.82 : x
  2. Step 2: Convert to fraction form
    137,179,764.34/189,308,282.18 = 74,455,884.82/x
  3. Step 3: Cross multiply
    137,179,764.34x = 189,308,282.18 × 74,455,884.82
  4. Step 4: Simplify right side
    137,179,764.34x = 14,095,115,653,466,138
  5. Step 5: Solve for x
    x = 14,095,115,653,466,138/137,179,764.34
  6. Step 6: Final answer
    x = 102,749,233.62

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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.