Finding the Fourth Proportional to 72,323,459.08, 99,778,245.18 and 40,954,307.08
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Solution
The fourth proportional to 72,323,459.08, 99,778,245.18 and 40,954,307.08 is: 56,501,015.65
Step by Step Solution
- Step 1: Write the proportion equation
72,323,459.08 : 99,778,245.18 = 40,954,307.08 : x - Step 2: Convert to fraction form
72,323,459.08/99,778,245.18 = 40,954,307.08/x - Step 3: Cross multiply
72,323,459.08x = 99,778,245.18 × 40,954,307.08 - Step 4: Simplify right side
72,323,459.08x = 4,086,348,893,005,250 - Step 5: Solve for x
x = 4,086,348,893,005,250/72,323,459.08 - Step 6: Final answer
x = 56,501,015.65
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.