Finding the Fourth Proportional to 7,648,672.14, 10,554,962.85 and 4,210,938.99
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Solution
The fourth proportional to 7,648,672.14, 10,554,962.85 and 4,210,938.99 is: 5,810,983.11
Step by Step Solution
- Step 1: Write the proportion equation
7,648,672.14 : 10,554,962.85 = 4,210,938.99 : x - Step 2: Convert to fraction form
7,648,672.14/10,554,962.85 = 4,210,938.99/x - Step 3: Cross multiply
7,648,672.14x = 10,554,962.85 × 4,210,938.99 - Step 4: Simplify right side
7,648,672.14x = 44,446,304,603,066.52 - Step 5: Solve for x
x = 44,446,304,603,066.52/7,648,672.14 - Step 6: Final answer
x = 5,810,983.11
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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.