Home / 20,804,561.90-31,206,842.85-14,422,021.10

Finding the Fourth Proportional to 20,804,561.90, 31,206,842.85 and 14,422,021.10

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Solution

The fourth proportional to 20,804,561.90, 31,206,842.85 and 14,422,021.10 is: 21,633,031.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,804,561.90 : 31,206,842.85 = 14,422,021.10 : x
  2. Step 2: Convert to fraction form
    20,804,561.90/31,206,842.85 = 14,422,021.10/x
  3. Step 3: Cross multiply
    20,804,561.90x = 31,206,842.85 × 14,422,021.10
  4. Step 4: Simplify right side
    20,804,561.90x = 450,065,746,047,084.12
  5. Step 5: Solve for x
    x = 450,065,746,047,084.12/20,804,561.90
  6. Step 6: Final answer
    x = 21,633,031.65

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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.