Finding the Fourth Proportional to 160,519,939.84, 221,518,650.72 and 87,181,081.84
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Solution
The fourth proportional to 160,519,939.84, 221,518,650.72 and 87,181,081.84 is: 120,310,508.69
Step by Step Solution
- Step 1: Write the proportion equation
160,519,939.84 : 221,518,650.72 = 87,181,081.84 : x - Step 2: Convert to fraction form
160,519,939.84/221,518,650.72 = 87,181,081.84/x - Step 3: Cross multiply
160,519,939.84x = 221,518,650.72 × 87,181,081.84 - Step 4: Simplify right side
160,519,939.84x = 19,312,235,617,506,696 - Step 5: Solve for x
x = 19,312,235,617,506,696/160,519,939.84 - Step 6: Final answer
x = 120,310,508.69
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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.