Home / 119,879,100-165,433,679.28-64,874,961.36

Finding the Fourth Proportional to 119,879,100, 165,433,679.28 and 64,874,961.36

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Solution

The fourth proportional to 119,879,100, 165,433,679.28 and 64,874,961.36 is: 89,527,728.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,879,100 : 165,433,679.28 = 64,874,961.36 : x
  2. Step 2: Convert to fraction form
    119,879,100/165,433,679.28 = 64,874,961.36/x
  3. Step 3: Cross multiply
    119,879,100x = 165,433,679.28 × 64,874,961.36
  4. Step 4: Simplify right side
    119,879,100x = 10,732,503,550,932,632
  5. Step 5: Solve for x
    x = 10,732,503,550,932,632/119,879,100
  6. Step 6: Final answer
    x = 89,527,728.78

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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.