Finding the Fourth Proportional to 128,897,201.88, 177,881,918.94 and 70,163,697.96
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Solution
The fourth proportional to 128,897,201.88, 177,881,918.94 and 70,163,697.96 is: 96,827,960.97
Step by Step Solution
- Step 1: Write the proportion equation
128,897,201.88 : 177,881,918.94 = 70,163,697.96 : x - Step 2: Convert to fraction form
128,897,201.88/177,881,918.94 = 70,163,697.96/x - Step 3: Cross multiply
128,897,201.88x = 177,881,918.94 × 70,163,697.96 - Step 4: Simplify right side
128,897,201.88x = 12,480,853,233,051,362 - Step 5: Solve for x
x = 12,480,853,233,051,362/128,897,201.88 - Step 6: Final answer
x = 96,827,960.97
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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.