Finding the Fourth Proportional to 122,738,490,145.63, 169,354,550,914.33 and 68,536,699,037.13
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Solution
The fourth proportional to 122,738,490,145.63, 169,354,550,914.33 and 68,536,699,037.13 is: 94,566,927,398.34
Step by Step Solution
- Step 1: Write the proportion equation
122,738,490,145.63 : 169,354,550,914.33 = 68,536,699,037.13 : x - Step 2: Convert to fraction form
122,738,490,145.63/169,354,550,914.33 = 68,536,699,037.13/x - Step 3: Cross multiply
122,738,490,145.63x = 169,354,550,914.33 × 68,536,699,037.13 - Step 4: Simplify right side
122,738,490,145.63x = 11,607,001,886,583,743,840,256 - Step 5: Solve for x
x = 11,607,001,886,583,743,840,256/122,738,490,145.63 - Step 6: Final answer
x = 94,566,927,398.34
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1.5x scale
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.