Finding the Fourth Proportional to 21,576,887.71, 29,776,543.98 and 11,787,965.93
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Solution
The fourth proportional to 21,576,887.71, 29,776,543.98 and 11,787,965.93 is: 16,267,632.79
Step by Step Solution
- Step 1: Write the proportion equation
21,576,887.71 : 29,776,543.98 = 11,787,965.93 : x - Step 2: Convert to fraction form
21,576,887.71/29,776,543.98 = 11,787,965.93/x - Step 3: Cross multiply
21,576,887.71x = 29,776,543.98 × 11,787,965.93 - Step 4: Simplify right side
21,576,887.71x = 351,004,885,949,386.62 - Step 5: Solve for x
x = 351,004,885,949,386.62/21,576,887.71 - Step 6: Final answer
x = 16,267,632.79
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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.