Home / 12,938,133.80-19,423,175.10-8,145,813.80

Finding the Fourth Proportional to 12,938,133.80, 19,423,175.10 and 8,145,813.80

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Solution

The fourth proportional to 12,938,133.80, 19,423,175.10 and 8,145,813.80 is: 12,228,778.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,938,133.80 : 19,423,175.10 = 8,145,813.80 : x
  2. Step 2: Convert to fraction form
    12,938,133.80/19,423,175.10 = 8,145,813.80/x
  3. Step 3: Cross multiply
    12,938,133.80x = 19,423,175.10 × 8,145,813.80
  4. Step 4: Simplify right side
    12,938,133.80x = 158,217,567,769,396.38
  5. Step 5: Solve for x
    x = 158,217,567,769,396.38/12,938,133.80
  6. Step 6: Final answer
    x = 12,228,778.14

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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.