Home / 21,478,029.40-32,217,044.10-12,984,563.80

Finding the Fourth Proportional to 21,478,029.40, 32,217,044.10 and 12,984,563.80

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Solution

The fourth proportional to 21,478,029.40, 32,217,044.10 and 12,984,563.80 is: 19,476,845.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,478,029.40 : 32,217,044.10 = 12,984,563.80 : x
  2. Step 2: Convert to fraction form
    21,478,029.40/32,217,044.10 = 12,984,563.80/x
  3. Step 3: Cross multiply
    21,478,029.40x = 32,217,044.10 × 12,984,563.80
  4. Step 4: Simplify right side
    21,478,029.40x = 418,324,264,563,863.62
  5. Step 5: Solve for x
    x = 418,324,264,563,863.62/21,478,029.40
  6. Step 6: Final answer
    x = 19,476,845.70

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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.