Home / 19,131,231.74-26,392,766.40-12,158,172.23

Finding the Fourth Proportional to 19,131,231.74, 26,392,766.40 and 12,158,172.23

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Solution

The fourth proportional to 19,131,231.74, 26,392,766.40 and 12,158,172.23 is: 16,772,981.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,131,231.74 : 26,392,766.40 = 12,158,172.23 : x
  2. Step 2: Convert to fraction form
    19,131,231.74/26,392,766.40 = 12,158,172.23/x
  3. Step 3: Cross multiply
    19,131,231.74x = 26,392,766.40 × 12,158,172.23
  4. Step 4: Simplify right side
    19,131,231.74x = 320,887,799,385,393.19
  5. Step 5: Solve for x
    x = 320,887,799,385,393.19/19,131,231.74
  6. Step 6: Final answer
    x = 16,772,981.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.