Finding the Fourth Proportional to 88,037,153.40, 132,079,349.70 and 78,518,454.60
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Solution
The fourth proportional to 88,037,153.40, 132,079,349.70 and 78,518,454.60 is: 117,798,747.72
Step by Step Solution
- Step 1: Write the proportion equation
88,037,153.40 : 132,079,349.70 = 78,518,454.60 : x - Step 2: Convert to fraction form
88,037,153.40/132,079,349.70 = 78,518,454.60/x - Step 3: Cross multiply
88,037,153.40x = 132,079,349.70 × 78,518,454.60 - Step 4: Simplify right side
88,037,153.40x = 10,370,666,423,016,974 - Step 5: Solve for x
x = 10,370,666,423,016,974/88,037,153.40 - Step 6: Final answer
x = 117,798,747.72
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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.