Home / 14,137,212.20-21,205,818.30-13,185,429.80

Finding the Fourth Proportional to 14,137,212.20, 21,205,818.30 and 13,185,429.80

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Solution

The fourth proportional to 14,137,212.20, 21,205,818.30 and 13,185,429.80 is: 19,778,144.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,137,212.20 : 21,205,818.30 = 13,185,429.80 : x
  2. Step 2: Convert to fraction form
    14,137,212.20/21,205,818.30 = 13,185,429.80/x
  3. Step 3: Cross multiply
    14,137,212.20x = 21,205,818.30 × 13,185,429.80
  4. Step 4: Simplify right side
    14,137,212.20x = 279,607,828,546,205.38
  5. Step 5: Solve for x
    x = 279,607,828,546,205.38/14,137,212.20
  6. Step 6: Final answer
    x = 19,778,144.70

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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.