Finding the Fourth Proportional to 187,317,558.98, 258,467,393.84 and 117,653,316.74
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Solution
The fourth proportional to 187,317,558.98, 258,467,393.84 and 117,653,316.74 is: 162,342,208.17
Step by Step Solution
- Step 1: Write the proportion equation
187,317,558.98 : 258,467,393.84 = 117,653,316.74 : x - Step 2: Convert to fraction form
187,317,558.98/258,467,393.84 = 117,653,316.74/x - Step 3: Cross multiply
187,317,558.98x = 258,467,393.84 × 117,653,316.74 - Step 4: Simplify right side
187,317,558.98x = 30,409,546,154,419,844 - Step 5: Solve for x
x = 30,409,546,154,419,844/187,317,558.98 - Step 6: Final answer
x = 162,342,208.17
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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.