Home / 128,006,964.52-176,650,076.37-69,269,623.54

Finding the Fourth Proportional to 128,006,964.52, 176,650,076.37 and 69,269,623.54

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Solution

The fourth proportional to 128,006,964.52, 176,650,076.37 and 69,269,623.54 is: 95,592,332.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,006,964.52 : 176,650,076.37 = 69,269,623.54 : x
  2. Step 2: Convert to fraction form
    128,006,964.52/176,650,076.37 = 69,269,623.54/x
  3. Step 3: Cross multiply
    128,006,964.52x = 176,650,076.37 × 69,269,623.54
  4. Step 4: Simplify right side
    128,006,964.52x = 12,236,484,288,462,152
  5. Step 5: Solve for x
    x = 12,236,484,288,462,152/128,006,964.52
  6. Step 6: Final answer
    x = 95,592,332.29

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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.