Finding the Fourth Proportional to 98,160,657.31, 135,467,767.79 and 54,107,556.94
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Solution
The fourth proportional to 98,160,657.31, 135,467,767.79 and 54,107,556.94 is: 74,671,769.32
Step by Step Solution
- Step 1: Write the proportion equation
98,160,657.31 : 135,467,767.79 = 54,107,556.94 : x - Step 2: Convert to fraction form
98,160,657.31/135,467,767.79 = 54,107,556.94/x - Step 3: Cross multiply
98,160,657.31x = 135,467,767.79 × 54,107,556.94 - Step 4: Simplify right side
98,160,657.31x = 7,329,829,958,690,053 - Step 5: Solve for x
x = 7,329,829,958,690,053/98,160,657.31 - Step 6: Final answer
x = 74,671,769.32
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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.