Finding the Fourth Proportional to 91,562,768.40, 137,344,152.60 and 84,547,747.20
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Solution
The fourth proportional to 91,562,768.40, 137,344,152.60 and 84,547,747.20 is: 126,821,620.80
Step by Step Solution
- Step 1: Write the proportion equation
91,562,768.40 : 137,344,152.60 = 84,547,747.20 : x - Step 2: Convert to fraction form
91,562,768.40/137,344,152.60 = 84,547,747.20/x - Step 3: Cross multiply
91,562,768.40x = 137,344,152.60 × 84,547,747.20 - Step 4: Simplify right side
91,562,768.40x = 11,612,138,693,423,022 - Step 5: Solve for x
x = 11,612,138,693,423,022/91,562,768.40 - Step 6: Final answer
x = 126,821,620.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.