Finding the Fourth Proportional to 91,990,102.06, 138,046,515.35 and 47,715,192.61
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Solution
The fourth proportional to 91,990,102.06, 138,046,515.35 and 47,715,192.61 is: 71,604,617.47
Step by Step Solution
- Step 1: Write the proportion equation
91,990,102.06 : 138,046,515.35 = 47,715,192.61 : x - Step 2: Convert to fraction form
91,990,102.06/138,046,515.35 = 47,715,192.61/x - Step 3: Cross multiply
91,990,102.06x = 138,046,515.35 × 47,715,192.61 - Step 4: Simplify right side
91,990,102.06x = 6,586,916,069,064,571 - Step 5: Solve for x
x = 6,586,916,069,064,571/91,990,102.06 - Step 6: Final answer
x = 71,604,617.47
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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.