Finding the Fourth Proportional to 19,805,658.18, 29,708,246.70 and 5,428,713.84
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Solution
The fourth proportional to 19,805,658.18, 29,708,246.70 and 5,428,713.84 is: 8,143,004.82
Step by Step Solution
- Step 1: Write the proportion equation
19,805,658.18 : 29,708,246.70 = 5,428,713.84 : x - Step 2: Convert to fraction form
19,805,658.18/29,708,246.70 = 5,428,713.84/x - Step 3: Cross multiply
19,805,658.18x = 29,708,246.70 × 5,428,713.84 - Step 4: Simplify right side
19,805,658.18x = 161,277,570,022,424.31 - Step 5: Solve for x
x = 161,277,570,022,424.31/19,805,658.18 - Step 6: Final answer
x = 8,143,004.82
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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.