Finding the Fourth Proportional to 526,658,642.68, 726,788,913.72 and 291,724,436.80
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Solution
The fourth proportional to 526,658,642.68, 726,788,913.72 and 291,724,436.80 is: 402,579,715.48
Step by Step Solution
- Step 1: Write the proportion equation
526,658,642.68 : 726,788,913.72 = 291,724,436.80 : x - Step 2: Convert to fraction form
526,658,642.68/726,788,913.72 = 291,724,436.80/x - Step 3: Cross multiply
526,658,642.68x = 726,788,913.72 × 291,724,436.80 - Step 4: Simplify right side
526,658,642.68x = 212,022,086,527,450,816 - Step 5: Solve for x
x = 212,022,086,527,450,816/526,658,642.68 - Step 6: Final answer
x = 402,579,715.48
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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.