Finding the Fourth Proportional to 74,887,220.40, 112,330,830.60 and 62,793,985.20
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Solution
The fourth proportional to 74,887,220.40, 112,330,830.60 and 62,793,985.20 is: 94,190,977.80
Step by Step Solution
- Step 1: Write the proportion equation
74,887,220.40 : 112,330,830.60 = 62,793,985.20 : x - Step 2: Convert to fraction form
74,887,220.40/112,330,830.60 = 62,793,985.20/x - Step 3: Cross multiply
74,887,220.40x = 112,330,830.60 × 62,793,985.20 - Step 4: Simplify right side
74,887,220.40x = 7,053,700,514,200,107 - Step 5: Solve for x
x = 7,053,700,514,200,107/74,887,220.40 - Step 6: Final answer
x = 94,190,977.80
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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.