Home / 20,736,043.65-31,104,065.49-20,610,072.45

Finding the Fourth Proportional to 20,736,043.65, 31,104,065.49 and 20,610,072.45

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Solution

The fourth proportional to 20,736,043.65, 31,104,065.49 and 20,610,072.45 is: 30,915,108.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,043.65 : 31,104,065.49 = 20,610,072.45 : x
  2. Step 2: Convert to fraction form
    20,736,043.65/31,104,065.49 = 20,610,072.45/x
  3. Step 3: Cross multiply
    20,736,043.65x = 31,104,065.49 × 20,610,072.45
  4. Step 4: Simplify right side
    20,736,043.65x = 641,057,043,238,444.75
  5. Step 5: Solve for x
    x = 641,057,043,238,444.75/20,736,043.65
  6. Step 6: Final answer
    x = 30,915,108.69

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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.