Finding the Fourth Proportional to 8,972,941.96, 12,382,228.02 and 5,105,101.96
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Solution
The fourth proportional to 8,972,941.96, 12,382,228.02 and 5,105,101.96 is: 7,044,794.99
Step by Step Solution
- Step 1: Write the proportion equation
8,972,941.96 : 12,382,228.02 = 5,105,101.96 : x - Step 2: Convert to fraction form
8,972,941.96/12,382,228.02 = 5,105,101.96/x - Step 3: Cross multiply
8,972,941.96x = 12,382,228.02 × 5,105,101.96 - Step 4: Simplify right side
8,972,941.96x = 63,212,536,534,068.91 - Step 5: Solve for x
x = 63,212,536,534,068.91/8,972,941.96 - Step 6: Final answer
x = 7,044,794.99
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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.