Finding the Fourth Proportional to 71,706,813.30, 107,560,219.95 and 65,728,102.05
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Solution
The fourth proportional to 71,706,813.30, 107,560,219.95 and 65,728,102.05 is: 98,592,153.08
Step by Step Solution
- Step 1: Write the proportion equation
71,706,813.30 : 107,560,219.95 = 65,728,102.05 : x - Step 2: Convert to fraction form
71,706,813.30/107,560,219.95 = 65,728,102.05/x - Step 3: Cross multiply
71,706,813.30x = 107,560,219.95 × 65,728,102.05 - Step 4: Simplify right side
71,706,813.30x = 7,069,729,113,394,046 - Step 5: Solve for x
x = 7,069,729,113,394,046/71,706,813.30 - Step 6: Final answer
x = 98,592,153.08
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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.