Finding the Fourth Proportional to 14,356,221.84, 19,810,887.12 and 8,554,874.40
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Solution
The fourth proportional to 14,356,221.84, 19,810,887.12 and 8,554,874.40 is: 11,805,310.13
Step by Step Solution
- Step 1: Write the proportion equation
14,356,221.84 : 19,810,887.12 = 8,554,874.40 : x - Step 2: Convert to fraction form
14,356,221.84/19,810,887.12 = 8,554,874.40/x - Step 3: Cross multiply
14,356,221.84x = 19,810,887.12 × 8,554,874.40 - Step 4: Simplify right side
14,356,221.84x = 169,479,651,064,177.75 - Step 5: Solve for x
x = 169,479,651,064,177.75/14,356,221.84 - Step 6: Final answer
x = 11,805,310.13
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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.