Finding the Fourth Proportional to 5,390,654.44, 7,439,128.68 and 2,943,315.04
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Solution
The fourth proportional to 5,390,654.44, 7,439,128.68 and 2,943,315.04 is: 4,061,788.71
Step by Step Solution
- Step 1: Write the proportion equation
5,390,654.44 : 7,439,128.68 = 2,943,315.04 : x - Step 2: Convert to fraction form
5,390,654.44/7,439,128.68 = 2,943,315.04/x - Step 3: Cross multiply
5,390,654.44x = 7,439,128.68 × 2,943,315.04 - Step 4: Simplify right side
5,390,654.44x = 21,895,699,328,339.35 - Step 5: Solve for x
x = 21,895,699,328,339.35/5,390,654.44 - Step 6: Final answer
x = 4,061,788.71
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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.