Home / 20,566,462.70-28,381,312.68-11,274,052.79

Finding the Fourth Proportional to 20,566,462.70, 28,381,312.68 and 11,274,052.79

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Solution

The fourth proportional to 20,566,462.70, 28,381,312.68 and 11,274,052.79 is: 15,557,970.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,566,462.70 : 28,381,312.68 = 11,274,052.79 : x
  2. Step 2: Convert to fraction form
    20,566,462.70/28,381,312.68 = 11,274,052.79/x
  3. Step 3: Cross multiply
    20,566,462.70x = 28,381,312.68 × 11,274,052.79
  4. Step 4: Simplify right side
    20,566,462.70x = 319,972,417,261,909.81
  5. Step 5: Solve for x
    x = 319,972,417,261,909.81/20,566,462.70
  6. Step 6: Final answer
    x = 15,557,970.37

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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.