Home / 21,471,909.51-29,632,054.46-12,306,325.35

Finding the Fourth Proportional to 21,471,909.51, 29,632,054.46 and 12,306,325.35

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Solution

The fourth proportional to 21,471,909.51, 29,632,054.46 and 12,306,325.35 is: 16,983,198.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,471,909.51 : 29,632,054.46 = 12,306,325.35 : x
  2. Step 2: Convert to fraction form
    21,471,909.51/29,632,054.46 = 12,306,325.35/x
  3. Step 3: Cross multiply
    21,471,909.51x = 29,632,054.46 × 12,306,325.35
  4. Step 4: Simplify right side
    21,471,909.51x = 364,661,702,912,146.88
  5. Step 5: Solve for x
    x = 364,661,702,912,146.88/21,471,909.51
  6. Step 6: Final answer
    x = 16,983,198.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.