Finding the Fourth Proportional to 5,355,867.84, 7,387,429.44 and 3,421,269.36
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Solution
The fourth proportional to 5,355,867.84, 7,387,429.44 and 3,421,269.36 is: 4,719,008.52
Step by Step Solution
- Step 1: Write the proportion equation
5,355,867.84 : 7,387,429.44 = 3,421,269.36 : x - Step 2: Convert to fraction form
5,355,867.84/7,387,429.44 = 3,421,269.36/x - Step 3: Cross multiply
5,355,867.84x = 7,387,429.44 × 3,421,269.36 - Step 4: Simplify right side
5,355,867.84x = 25,274,385,992,233.96 - Step 5: Solve for x
x = 25,274,385,992,233.96/5,355,867.84 - Step 6: Final answer
x = 4,719,008.52
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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.