Home / 20,736,052.90-31,104,079.35-20,610,081.70

Finding the Fourth Proportional to 20,736,052.90, 31,104,079.35 and 20,610,081.70

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Solution

The fourth proportional to 20,736,052.90, 31,104,079.35 and 20,610,081.70 is: 30,915,122.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,052.90 : 31,104,079.35 = 20,610,081.70 : x
  2. Step 2: Convert to fraction form
    20,736,052.90/31,104,079.35 = 20,610,081.70/x
  3. Step 3: Cross multiply
    20,736,052.90x = 31,104,079.35 × 20,610,081.70
  4. Step 4: Simplify right side
    20,736,052.90x = 641,057,616,606,782.88
  5. Step 5: Solve for x
    x = 641,057,616,606,782.88/20,736,052.90
  6. Step 6: Final answer
    x = 30,915,122.55

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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.