Home / 165,464,813.17-247,874,331.83-128,902,004.67

Finding the Fourth Proportional to 165,464,813.17, 247,874,331.83 and 128,902,004.67

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Solution

The fourth proportional to 165,464,813.17, 247,874,331.83 and 128,902,004.67 is: 193,101,467.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,464,813.17 : 247,874,331.83 = 128,902,004.67 : x
  2. Step 2: Convert to fraction form
    165,464,813.17/247,874,331.83 = 128,902,004.67/x
  3. Step 3: Cross multiply
    165,464,813.17x = 247,874,331.83 × 128,902,004.67
  4. Step 4: Simplify right side
    165,464,813.17x = 31,951,498,280,065,732
  5. Step 5: Solve for x
    x = 31,951,498,280,065,732/165,464,813.17
  6. Step 6: Final answer
    x = 193,101,467.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.