Finding the Fourth Proportional to 124,102,416.80, 171,259,245.74 and 68,353,028.75
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Solution
The fourth proportional to 124,102,416.80, 171,259,245.74 and 68,353,028.75 is: 94,326,028.86
Step by Step Solution
- Step 1: Write the proportion equation
124,102,416.80 : 171,259,245.74 = 68,353,028.75 : x - Step 2: Convert to fraction form
124,102,416.80/171,259,245.74 = 68,353,028.75/x - Step 3: Cross multiply
124,102,416.80x = 171,259,245.74 × 68,353,028.75 - Step 4: Simplify right side
124,102,416.80x = 11,706,088,148,368,566 - Step 5: Solve for x
x = 11,706,088,148,368,566/124,102,416.80 - Step 6: Final answer
x = 94,326,028.86
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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.