Home / 21,042,706.40-31,564,059.60-19,873,536.20

Finding the Fourth Proportional to 21,042,706.40, 31,564,059.60 and 19,873,536.20

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Solution

The fourth proportional to 21,042,706.40, 31,564,059.60 and 19,873,536.20 is: 29,810,304.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,042,706.40 : 31,564,059.60 = 19,873,536.20 : x
  2. Step 2: Convert to fraction form
    21,042,706.40/31,564,059.60 = 19,873,536.20/x
  3. Step 3: Cross multiply
    21,042,706.40x = 31,564,059.60 × 19,873,536.20
  4. Step 4: Simplify right side
    21,042,706.40x = 627,289,481,079,557.50
  5. Step 5: Solve for x
    x = 627,289,481,079,557.50/21,042,706.40
  6. Step 6: Final answer
    x = 29,810,304.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.