Finding the Fourth Proportional to 22,921,053.30, 31,609,428.99 and 15,066,690.66
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Solution
The fourth proportional to 22,921,053.30, 31,609,428.99 and 15,066,690.66 is: 20,777,818.64
Step by Step Solution
- Step 1: Write the proportion equation
22,921,053.30 : 31,609,428.99 = 15,066,690.66 : x - Step 2: Convert to fraction form
22,921,053.30/31,609,428.99 = 15,066,690.66/x - Step 3: Cross multiply
22,921,053.30x = 31,609,428.99 × 15,066,690.66 - Step 4: Simplify right side
22,921,053.30x = 476,249,488,531,566.19 - Step 5: Solve for x
x = 476,249,488,531,566.19/22,921,053.30 - Step 6: Final answer
x = 20,777,818.64
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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.