Finding the Fourth Proportional to 75,805,738, 104,611,916.80 and 40,998,428.12
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Solution
The fourth proportional to 75,805,738, 104,611,916.80 and 40,998,428.12 is: 56,577,829.92
Step by Step Solution
- Step 1: Write the proportion equation
75,805,738 : 104,611,916.80 = 40,998,428.12 : x - Step 2: Convert to fraction form
75,805,738/104,611,916.80 = 40,998,428.12/x - Step 3: Cross multiply
75,805,738x = 104,611,916.80 × 40,998,428.12 - Step 4: Simplify right side
75,805,738x = 4,288,924,151,420,220 - Step 5: Solve for x
x = 4,288,924,151,420,220/75,805,738 - Step 6: Final answer
x = 56,577,829.92
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1.5x scale
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.