Home / 20,804,587.65-31,206,978.68-7,341,415.65

Finding the Fourth Proportional to 20,804,587.65, 31,206,978.68 and 7,341,415.65

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Solution

The fourth proportional to 20,804,587.65, 31,206,978.68 and 7,341,415.65 is: 11,012,157.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,804,587.65 : 31,206,978.68 = 7,341,415.65 : x
  2. Step 2: Convert to fraction form
    20,804,587.65/31,206,978.68 = 7,341,415.65/x
  3. Step 3: Cross multiply
    20,804,587.65x = 31,206,978.68 × 7,341,415.65
  4. Step 4: Simplify right side
    20,804,587.65x = 229,103,401,670,568.34
  5. Step 5: Solve for x
    x = 229,103,401,670,568.34/20,804,587.65
  6. Step 6: Final answer
    x = 11,012,157.78

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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.