Finding the Fourth Proportional to 112,972,357.80, 169,458,536.70 and 112,972,357.80
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Solution
The fourth proportional to 112,972,357.80, 169,458,536.70 and 112,972,357.80 is: 169,458,536.70
Step by Step Solution
- Step 1: Write the proportion equation
112,972,357.80 : 169,458,536.70 = 112,972,357.80 : x - Step 2: Convert to fraction form
112,972,357.80/169,458,536.70 = 112,972,357.80/x - Step 3: Cross multiply
112,972,357.80x = 169,458,536.70 × 112,972,357.80 - Step 4: Simplify right side
112,972,357.80x = 19,144,130,440,336,828 - Step 5: Solve for x
x = 19,144,130,440,336,828/112,972,357.80 - Step 6: Final answer
x = 169,458,536.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.