Finding the Fourth Proportional to 121,571,270.96, 167,768,625.48 and 65,817,278.96
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Solution
The fourth proportional to 121,571,270.96, 167,768,625.48 and 65,817,278.96 is: 90,827,991.98
Step by Step Solution
- Step 1: Write the proportion equation
121,571,270.96 : 167,768,625.48 = 65,817,278.96 : x - Step 2: Convert to fraction form
121,571,270.96/167,768,625.48 = 65,817,278.96/x - Step 3: Cross multiply
121,571,270.96x = 167,768,625.48 × 65,817,278.96 - Step 4: Simplify right side
121,571,270.96x = 11,042,074,423,952,924 - Step 5: Solve for x
x = 11,042,074,423,952,924/121,571,270.96 - Step 6: Final answer
x = 90,827,991.98
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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.