Home / 21,283,744.80-31,890,596.40-12,292,615.20

Finding the Fourth Proportional to 21,283,744.80, 31,890,596.40 and 12,292,615.20

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Solution

The fourth proportional to 21,283,744.80, 31,890,596.40 and 12,292,615.20 is: 18,418,696.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,283,744.80 : 31,890,596.40 = 12,292,615.20 : x
  2. Step 2: Convert to fraction form
    21,283,744.80/31,890,596.40 = 12,292,615.20/x
  3. Step 3: Cross multiply
    21,283,744.80x = 31,890,596.40 × 12,292,615.20
  4. Step 4: Simplify right side
    21,283,744.80x = 392,018,830,043,705.25
  5. Step 5: Solve for x
    x = 392,018,830,043,705.25/21,283,744.80
  6. Step 6: Final answer
    x = 18,418,696.23

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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.