Finding the Fourth Proportional to 98,124,155.88, 135,412,243.13 and 54,072,731.09
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Solution
The fourth proportional to 98,124,155.88, 135,412,243.13 and 54,072,731.09 is: 74,620,869.29
Step by Step Solution
- Step 1: Write the proportion equation
98,124,155.88 : 135,412,243.13 = 54,072,731.09 : x - Step 2: Convert to fraction form
98,124,155.88/135,412,243.13 = 54,072,731.09/x - Step 3: Cross multiply
98,124,155.88x = 135,412,243.13 × 54,072,731.09 - Step 4: Simplify right side
98,124,155.88x = 7,322,109,809,772,758 - Step 5: Solve for x
x = 7,322,109,809,772,758/98,124,155.88 - Step 6: Final answer
x = 74,620,869.29
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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.