Finding the Fourth Proportional to 98,177,053.98, 135,485,378.04 and 54,125,629.28
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Solution
The fourth proportional to 98,177,053.98, 135,485,378.04 and 54,125,629.28 is: 74,693,943.72
Step by Step Solution
- Step 1: Write the proportion equation
98,177,053.98 : 135,485,378.04 = 54,125,629.28 : x - Step 2: Convert to fraction form
98,177,053.98/135,485,378.04 = 54,125,629.28/x - Step 3: Cross multiply
98,177,053.98x = 135,485,378.04 × 54,125,629.28 - Step 4: Simplify right side
98,177,053.98x = 7,333,231,344,653,693 - Step 5: Solve for x
x = 7,333,231,344,653,693/98,177,053.98 - Step 6: Final answer
x = 74,693,943.72
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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.