Home / 21,302,843.80-31,954,265.70-17,901,621.40

Finding the Fourth Proportional to 21,302,843.80, 31,954,265.70 and 17,901,621.40

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Solution

The fourth proportional to 21,302,843.80, 31,954,265.70 and 17,901,621.40 is: 26,852,432.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,302,843.80 : 31,954,265.70 = 17,901,621.40 : x
  2. Step 2: Convert to fraction form
    21,302,843.80/31,954,265.70 = 17,901,621.40/x
  3. Step 3: Cross multiply
    21,302,843.80x = 31,954,265.70 × 17,901,621.40
  4. Step 4: Simplify right side
    21,302,843.80x = 572,033,166,676,405.88
  5. Step 5: Solve for x
    x = 572,033,166,676,405.88/21,302,843.80
  6. Step 6: Final answer
    x = 26,852,432.10

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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.