Finding the Fourth Proportional to 9,657,639.99, 13,327,539.39 and 5,307,006.87
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Solution
The fourth proportional to 9,657,639.99, 13,327,539.39 and 5,307,006.87 is: 7,323,667.39
Step by Step Solution
- Step 1: Write the proportion equation
9,657,639.99 : 13,327,539.39 = 5,307,006.87 : x - Step 2: Convert to fraction form
9,657,639.99/13,327,539.39 = 5,307,006.87/x - Step 3: Cross multiply
9,657,639.99x = 13,327,539.39 × 5,307,006.87 - Step 4: Simplify right side
9,657,639.99x = 70,729,343,102,925.61 - Step 5: Solve for x
x = 70,729,343,102,925.61/9,657,639.99 - Step 6: Final answer
x = 7,323,667.39
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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.