Home / 128,259,898.37-176,993,917.88-69,521,302.35

Finding the Fourth Proportional to 128,259,898.37, 176,993,917.88 and 69,521,302.35

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Solution

The fourth proportional to 128,259,898.37, 176,993,917.88 and 69,521,302.35 is: 95,936,826.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,259,898.37 : 176,993,917.88 = 69,521,302.35 : x
  2. Step 2: Convert to fraction form
    128,259,898.37/176,993,917.88 = 69,521,302.35/x
  3. Step 3: Cross multiply
    128,259,898.37x = 176,993,917.88 × 69,521,302.35
  4. Step 4: Simplify right side
    128,259,898.37x = 12,304,847,678,698,944
  5. Step 5: Solve for x
    x = 12,304,847,678,698,944/128,259,898.37
  6. Step 6: Final answer
    x = 95,936,826.99

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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.