Home / 20,365,966.56-28,106,043.84-12,633,500.16

Finding the Fourth Proportional to 20,365,966.56, 28,106,043.84 and 12,633,500.16

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Solution

The fourth proportional to 20,365,966.56, 28,106,043.84 and 12,633,500.16 is: 17,434,856.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,365,966.56 : 28,106,043.84 = 12,633,500.16 : x
  2. Step 2: Convert to fraction form
    20,365,966.56/28,106,043.84 = 12,633,500.16/x
  3. Step 3: Cross multiply
    20,365,966.56x = 28,106,043.84 × 12,633,500.16
  4. Step 4: Simplify right side
    20,365,966.56x = 355,077,709,349,607
  5. Step 5: Solve for x
    x = 355,077,709,349,607/20,365,966.56
  6. Step 6: Final answer
    x = 17,434,856.74

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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.