Home / 84,109,662.40-125,987,546.40-69,953,886.40

Finding the Fourth Proportional to 84,109,662.40, 125,987,546.40 and 69,953,886.40

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Solution

The fourth proportional to 84,109,662.40, 125,987,546.40 and 69,953,886.40 is: 104,783,662.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,109,662.40 : 125,987,546.40 = 69,953,886.40 : x
  2. Step 2: Convert to fraction form
    84,109,662.40/125,987,546.40 = 69,953,886.40/x
  3. Step 3: Cross multiply
    84,109,662.40x = 125,987,546.40 × 69,953,886.40
  4. Step 4: Simplify right side
    84,109,662.40x = 8,813,318,508,680,330
  5. Step 5: Solve for x
    x = 8,813,318,508,680,330/84,109,662.40
  6. Step 6: Final answer
    x = 104,783,662.87

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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.