Home / 13,187,530.80-19,781,296.20-7,424,348.40

Finding the Fourth Proportional to 13,187,530.80, 19,781,296.20 and 7,424,348.40

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Solution

The fourth proportional to 13,187,530.80, 19,781,296.20 and 7,424,348.40 is: 11,136,522.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,187,530.80 : 19,781,296.20 = 7,424,348.40 : x
  2. Step 2: Convert to fraction form
    13,187,530.80/19,781,296.20 = 7,424,348.40/x
  3. Step 3: Cross multiply
    13,187,530.80x = 19,781,296.20 × 7,424,348.40
  4. Step 4: Simplify right side
    13,187,530.80x = 146,863,234,792,396.09
  5. Step 5: Solve for x
    x = 146,863,234,792,396.09/13,187,530.80
  6. Step 6: Final answer
    x = 11,136,522.60

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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.