Finding the Fourth Proportional to 138,014,179.89, 190,425,597.93 and 84,355,260.09
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Solution
The fourth proportional to 138,014,179.89, 190,425,597.93 and 84,355,260.09 is: 116,389,496.02
Step by Step Solution
- Step 1: Write the proportion equation
138,014,179.89 : 190,425,597.93 = 84,355,260.09 : x - Step 2: Convert to fraction form
138,014,179.89/190,425,597.93 = 84,355,260.09/x - Step 3: Cross multiply
138,014,179.89x = 190,425,597.93 × 84,355,260.09 - Step 4: Simplify right side
138,014,179.89x = 16,063,400,841,178,916 - Step 5: Solve for x
x = 16,063,400,841,178,916/138,014,179.89 - Step 6: Final answer
x = 116,389,496.02
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.