Finding the Fourth Proportional to 87,715,712.48, 121,048,640.52 and 48,558,143.12
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Solution
The fourth proportional to 87,715,712.48, 121,048,640.52 and 48,558,143.12 is: 67,010,767.45
Step by Step Solution
- Step 1: Write the proportion equation
87,715,712.48 : 121,048,640.52 = 48,558,143.12 : x - Step 2: Convert to fraction form
87,715,712.48/121,048,640.52 = 48,558,143.12/x - Step 3: Cross multiply
87,715,712.48x = 121,048,640.52 × 48,558,143.12 - Step 4: Simplify right side
87,715,712.48x = 5,877,897,210,851,591 - Step 5: Solve for x
x = 5,877,897,210,851,591/87,715,712.48 - Step 6: Final answer
x = 67,010,767.45
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.