Home / 21,662,515.80-29,890,352.70-13,925,784.60

Finding the Fourth Proportional to 21,662,515.80, 29,890,352.70 and 13,925,784.60

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Solution

The fourth proportional to 21,662,515.80, 29,890,352.70 and 13,925,784.60 is: 19,215,063.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,662,515.80 : 29,890,352.70 = 13,925,784.60 : x
  2. Step 2: Convert to fraction form
    21,662,515.80/29,890,352.70 = 13,925,784.60/x
  3. Step 3: Cross multiply
    21,662,515.80x = 29,890,352.70 × 13,925,784.60
  4. Step 4: Simplify right side
    21,662,515.80x = 416,246,613,318,228.38
  5. Step 5: Solve for x
    x = 416,246,613,318,228.38/21,662,515.80
  6. Step 6: Final answer
    x = 19,215,063.35

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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.