Finding the Fourth Proportional to 77,530,199.67, 106,992,392.99 and 42,724,135.64
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Solution
The fourth proportional to 77,530,199.67, 106,992,392.99 and 42,724,135.64 is: 58,959,702.53
Step by Step Solution
- Step 1: Write the proportion equation
77,530,199.67 : 106,992,392.99 = 42,724,135.64 : x - Step 2: Convert to fraction form
77,530,199.67/106,992,392.99 = 42,724,135.64/x - Step 3: Cross multiply
77,530,199.67x = 106,992,392.99 × 42,724,135.64 - Step 4: Simplify right side
77,530,199.67x = 4,571,157,509,804,362 - Step 5: Solve for x
x = 4,571,157,509,804,362/77,530,199.67 - Step 6: Final answer
x = 58,959,702.53
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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.