Finding the Fourth Proportional to 124,127,336.78, 171,289,393.74 and 68,371,556.92
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Solution
The fourth proportional to 124,127,336.78, 171,289,393.74 and 68,371,556.92 is: 94,349,261.31
Step by Step Solution
- Step 1: Write the proportion equation
124,127,336.78 : 171,289,393.74 = 68,371,556.92 : x - Step 2: Convert to fraction form
124,127,336.78/171,289,393.74 = 68,371,556.92/x - Step 3: Cross multiply
124,127,336.78x = 171,289,393.74 × 68,371,556.92 - Step 4: Simplify right side
124,127,336.78x = 11,711,322,533,886,702 - Step 5: Solve for x
x = 11,711,322,533,886,702/124,127,336.78 - Step 6: Final answer
x = 94,349,261.31
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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.