Home / 20,569,798.51-28,389,213.84-12,731,824.92

Finding the Fourth Proportional to 20,569,798.51, 28,389,213.84 and 12,731,824.92

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Solution

The fourth proportional to 20,569,798.51, 28,389,213.84 and 12,731,824.92 is: 17,571,708.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,569,798.51 : 28,389,213.84 = 12,731,824.92 : x
  2. Step 2: Convert to fraction form
    20,569,798.51/28,389,213.84 = 12,731,824.92/x
  3. Step 3: Cross multiply
    20,569,798.51x = 28,389,213.84 × 12,731,824.92
  4. Step 4: Simplify right side
    20,569,798.51x = 361,446,500,227,320.88
  5. Step 5: Solve for x
    x = 361,446,500,227,320.88/20,569,798.51
  6. Step 6: Final answer
    x = 17,571,708.35

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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.