Finding the Fourth Proportional to 122,738,490,145.38, 169,354,550,913.98 and 68,536,699,036.88
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Solution
The fourth proportional to 122,738,490,145.38, 169,354,550,913.98 and 68,536,699,036.88 is: 94,566,927,397.99
Step by Step Solution
- Step 1: Write the proportion equation
122,738,490,145.38 : 169,354,550,913.98 = 68,536,699,036.88 : x - Step 2: Convert to fraction form
122,738,490,145.38/169,354,550,913.98 = 68,536,699,036.88/x - Step 3: Cross multiply
122,738,490,145.38x = 169,354,550,913.98 × 68,536,699,036.88 - Step 4: Simplify right side
122,738,490,145.38x = 11,607,001,886,517,419,311,104 - Step 5: Solve for x
x = 11,607,001,886,517,419,311,104/122,738,490,145.38 - Step 6: Final answer
x = 94,566,927,397.99
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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.