Home / 21,106,052.50-31,664,537.04-12,359,717.50

Finding the Fourth Proportional to 21,106,052.50, 31,664,537.04 and 12,359,717.50

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Solution

The fourth proportional to 21,106,052.50, 31,664,537.04 and 12,359,717.50 is: 18,542,772.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,106,052.50 : 31,664,537.04 = 12,359,717.50 : x
  2. Step 2: Convert to fraction form
    21,106,052.50/31,664,537.04 = 12,359,717.50/x
  3. Step 3: Cross multiply
    21,106,052.50x = 31,664,537.04 × 12,359,717.50
  4. Step 4: Simplify right side
    21,106,052.50x = 391,364,732,582,686.19
  5. Step 5: Solve for x
    x = 391,364,732,582,686.19/21,106,052.50
  6. Step 6: Final answer
    x = 18,542,772.63

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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.