Finding the Fourth Proportional to 90,992,461.70, 136,488,692.55 and 50,602,945.70
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Solution
The fourth proportional to 90,992,461.70, 136,488,692.55 and 50,602,945.70 is: 75,904,418.55
Step by Step Solution
- Step 1: Write the proportion equation
90,992,461.70 : 136,488,692.55 = 50,602,945.70 : x - Step 2: Convert to fraction form
90,992,461.70/136,488,692.55 = 50,602,945.70/x - Step 3: Cross multiply
90,992,461.70x = 136,488,692.55 × 50,602,945.70 - Step 4: Simplify right side
90,992,461.70x = 6,906,729,897,771,646 - Step 5: Solve for x
x = 6,906,729,897,771,646/90,992,461.70 - Step 6: Final answer
x = 75,904,418.55
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1.5x scale
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.