Finding the Fourth Proportional to 6,328,991.29, 8,732,235.74 and 3,974,442.79
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Solution
The fourth proportional to 6,328,991.29, 8,732,235.74 and 3,974,442.79 is: 5,483,618.13
Step by Step Solution
- Step 1: Write the proportion equation
6,328,991.29 : 8,732,235.74 = 3,974,442.79 : x - Step 2: Convert to fraction form
6,328,991.29/8,732,235.74 = 3,974,442.79/x - Step 3: Cross multiply
6,328,991.29x = 8,732,235.74 × 3,974,442.79 - Step 4: Simplify right side
6,328,991.29x = 34,705,771,377,423.32 - Step 5: Solve for x
x = 34,705,771,377,423.32/6,328,991.29 - Step 6: Final answer
x = 5,483,618.13
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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.