Finding the Fourth Proportional to 9,207,329.20, 12,707,259.84 and 5,288,312.68
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Solution
The fourth proportional to 9,207,329.20, 12,707,259.84 and 5,288,312.68 is: 7,298,529.45
Step by Step Solution
- Step 1: Write the proportion equation
9,207,329.20 : 12,707,259.84 = 5,288,312.68 : x - Step 2: Convert to fraction form
9,207,329.20/12,707,259.84 = 5,288,312.68/x - Step 3: Cross multiply
9,207,329.20x = 12,707,259.84 × 5,288,312.68 - Step 4: Simplify right side
9,207,329.20x = 67,199,963,339,926.77 - Step 5: Solve for x
x = 67,199,963,339,926.77/9,207,329.20 - Step 6: Final answer
x = 7,298,529.45
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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.