Finding the Fourth Proportional to 74,886,791.40, 112,330,187.10 and 61,281,901.80
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Solution
The fourth proportional to 74,886,791.40, 112,330,187.10 and 61,281,901.80 is: 91,922,852.70
Step by Step Solution
- Step 1: Write the proportion equation
74,886,791.40 : 112,330,187.10 = 61,281,901.80 : x - Step 2: Convert to fraction form
74,886,791.40/112,330,187.10 = 61,281,901.80/x - Step 3: Cross multiply
74,886,791.40x = 112,330,187.10 × 61,281,901.80 - Step 4: Simplify right side
74,886,791.40x = 6,883,807,495,037,826 - Step 5: Solve for x
x = 6,883,807,495,037,826/74,886,791.40 - Step 6: Final answer
x = 91,922,852.70
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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.