Finding the Fourth Proportional to 21,619,925.14, 29,834,183.91 and 12,326,195.74
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Solution
The fourth proportional to 21,619,925.14, 29,834,183.91 and 12,326,195.74 is: 17,009,401.66
Step by Step Solution
- Step 1: Write the proportion equation
21,619,925.14 : 29,834,183.91 = 12,326,195.74 : x - Step 2: Convert to fraction form
21,619,925.14/29,834,183.91 = 12,326,195.74/x - Step 3: Cross multiply
21,619,925.14x = 29,834,183.91 × 12,326,195.74 - Step 4: Simplify right side
21,619,925.14x = 367,741,990,617,818.56 - Step 5: Solve for x
x = 367,741,990,617,818.56/21,619,925.14 - Step 6: Final answer
x = 17,009,401.66
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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.