Finding the Fourth Proportional to 21,137,424.62, 29,170,364.04 and 20,168,873.40
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Solution
The fourth proportional to 21,137,424.62, 29,170,364.04 and 20,168,873.40 is: 27,833,730.45
Step by Step Solution
- Step 1: Write the proportion equation
21,137,424.62 : 29,170,364.04 = 20,168,873.40 : x - Step 2: Convert to fraction form
21,137,424.62/29,170,364.04 = 20,168,873.40/x - Step 3: Cross multiply
21,137,424.62x = 29,170,364.04 × 20,168,873.40 - Step 4: Simplify right side
21,137,424.62x = 588,333,379,253,828.12 - Step 5: Solve for x
x = 588,333,379,253,828.12/21,137,424.62 - Step 6: Final answer
x = 27,833,730.45
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.