Home / 20,684,461.42-28,542,444.41-12,735,741.58

Finding the Fourth Proportional to 20,684,461.42, 28,542,444.41 and 12,735,741.58

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Solution

The fourth proportional to 20,684,461.42, 28,542,444.41 and 12,735,741.58 is: 17,574,022.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,684,461.42 : 28,542,444.41 = 12,735,741.58 : x
  2. Step 2: Convert to fraction form
    20,684,461.42/28,542,444.41 = 12,735,741.58/x
  3. Step 3: Cross multiply
    20,684,461.42x = 28,542,444.41 × 12,735,741.58
  4. Step 4: Simplify right side
    20,684,461.42x = 363,509,195,956,107.56
  5. Step 5: Solve for x
    x = 363,509,195,956,107.56/20,684,461.42
  6. Step 6: Final answer
    x = 17,574,022.77

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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.