Finding the Fourth Proportional to 74,887,631.40, 112,331,447.10 and 61,282,741.80
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Solution
The fourth proportional to 74,887,631.40, 112,331,447.10 and 61,282,741.80 is: 91,924,112.70
Step by Step Solution
- Step 1: Write the proportion equation
74,887,631.40 : 112,331,447.10 = 61,282,741.80 : x - Step 2: Convert to fraction form
74,887,631.40/112,331,447.10 = 61,282,741.80/x - Step 3: Cross multiply
74,887,631.40x = 112,331,447.10 × 61,282,741.80 - Step 4: Simplify right side
74,887,631.40x = 6,883,979,068,649,658 - Step 5: Solve for x
x = 6,883,979,068,649,658/74,887,631.40 - Step 6: Final answer
x = 91,924,112.70
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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.