Finding the Fourth Proportional to 5,243,816.77, 7,236,355.59 and 2,920,702.14
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Solution
The fourth proportional to 5,243,816.77, 7,236,355.59 and 2,920,702.14 is: 4,030,506.82
Step by Step Solution
- Step 1: Write the proportion equation
5,243,816.77 : 7,236,355.59 = 2,920,702.14 : x - Step 2: Convert to fraction form
5,243,816.77/7,236,355.59 = 2,920,702.14/x - Step 3: Cross multiply
5,243,816.77x = 7,236,355.59 × 2,920,702.14 - Step 4: Simplify right side
5,243,816.77x = 21,135,239,257,513.96 - Step 5: Solve for x
x = 21,135,239,257,513.96/5,243,816.77 - Step 6: Final answer
x = 4,030,506.82
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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.