Finding the Fourth Proportional to 7,872,372.19, 11,844,578.18 and 4,679,888.01
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Solution
The fourth proportional to 7,872,372.19, 11,844,578.18 and 4,679,888.01 is: 7,041,244.76
Step by Step Solution
- Step 1: Write the proportion equation
7,872,372.19 : 11,844,578.18 = 4,679,888.01 : x - Step 2: Convert to fraction form
7,872,372.19/11,844,578.18 = 4,679,888.01/x - Step 3: Cross multiply
7,872,372.19x = 11,844,578.18 × 4,679,888.01 - Step 4: Simplify right side
7,872,372.19x = 55,431,299,408,089.62 - Step 5: Solve for x
x = 55,431,299,408,089.62/7,872,372.19 - Step 6: Final answer
x = 7,041,244.76
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.