Finding the Fourth Proportional to 10,356,588.20, 14,298,214.80 and 9,207,487.64
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Solution
The fourth proportional to 10,356,588.20, 14,298,214.80 and 9,207,487.64 is: 12,711,776.65
Step by Step Solution
- Step 1: Write the proportion equation
10,356,588.20 : 14,298,214.80 = 9,207,487.64 : x - Step 2: Convert to fraction form
10,356,588.20/14,298,214.80 = 9,207,487.64/x - Step 3: Cross multiply
10,356,588.20x = 14,298,214.80 × 9,207,487.64 - Step 4: Simplify right side
10,356,588.20x = 131,650,636,045,065.09 - Step 5: Solve for x
x = 131,650,636,045,065.09/10,356,588.20 - Step 6: Final answer
x = 12,711,776.65
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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.