Home / 137,179,778.50-189,308,301.66-74,455,898.98

Finding the Fourth Proportional to 137,179,778.50, 189,308,301.66 and 74,455,898.98

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Solution

The fourth proportional to 137,179,778.50, 189,308,301.66 and 74,455,898.98 is: 102,749,253.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,179,778.50 : 189,308,301.66 = 74,455,898.98 : x
  2. Step 2: Convert to fraction form
    137,179,778.50/189,308,301.66 = 74,455,898.98/x
  3. Step 3: Cross multiply
    137,179,778.50x = 189,308,301.66 × 74,455,898.98
  4. Step 4: Simplify right side
    137,179,778.50x = 14,095,119,784,472,326
  5. Step 5: Solve for x
    x = 14,095,119,784,472,326/137,179,778.50
  6. Step 6: Final answer
    x = 102,749,253.12

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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.