Finding the Fourth Proportional to 98,146,336.80, 135,436,417.80 and 54,093,202.16
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Solution
The fourth proportional to 98,146,336.80, 135,436,417.80 and 54,093,202.16 is: 74,645,572.79
Step by Step Solution
- Step 1: Write the proportion equation
98,146,336.80 : 135,436,417.80 = 54,093,202.16 : x - Step 2: Convert to fraction form
98,146,336.80/135,436,417.80 = 54,093,202.16/x - Step 3: Cross multiply
98,146,336.80x = 135,436,417.80 × 54,093,202.16 - Step 4: Simplify right side
98,146,336.80x = 7,326,189,527,881,623 - Step 5: Solve for x
x = 7,326,189,527,881,623/98,146,336.80 - Step 6: Final answer
x = 74,645,572.79
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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.