Finding the Fourth Proportional to 6,690,278.88, 10,020,239.64 and 4,261,445.28
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Solution
The fourth proportional to 6,690,278.88, 10,020,239.64 and 4,261,445.28 is: 6,382,499.70
Step by Step Solution
- Step 1: Write the proportion equation
6,690,278.88 : 10,020,239.64 = 4,261,445.28 : x - Step 2: Convert to fraction form
6,690,278.88/10,020,239.64 = 4,261,445.28/x - Step 3: Cross multiply
6,690,278.88x = 10,020,239.64 × 4,261,445.28 - Step 4: Simplify right side
6,690,278.88x = 42,700,702,918,346.91 - Step 5: Solve for x
x = 42,700,702,918,346.91/6,690,278.88 - Step 6: Final answer
x = 6,382,499.70
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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.