Finding the Fourth Proportional to 19,979,830.98, 27,572,253.66 and 10,812,474.54
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Solution
The fourth proportional to 19,979,830.98, 27,572,253.66 and 10,812,474.54 is: 14,921,261.90
Step by Step Solution
- Step 1: Write the proportion equation
19,979,830.98 : 27,572,253.66 = 10,812,474.54 : x - Step 2: Convert to fraction form
19,979,830.98/27,572,253.66 = 10,812,474.54/x - Step 3: Cross multiply
19,979,830.98x = 27,572,253.66 × 10,812,474.54 - Step 4: Simplify right side
19,979,830.98x = 298,124,290,709,171.81 - Step 5: Solve for x
x = 298,124,290,709,171.81/19,979,830.98 - Step 6: Final answer
x = 14,921,261.90
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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.