Finding the Fourth Proportional to 124,448,914.79, 171,739,476.53 and 68,694,320.34
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Solution
The fourth proportional to 124,448,914.79, 171,739,476.53 and 68,694,320.34 is: 94,798,147.78
Step by Step Solution
- Step 1: Write the proportion equation
124,448,914.79 : 171,739,476.53 = 68,694,320.34 : x - Step 2: Convert to fraction form
124,448,914.79/171,739,476.53 = 68,694,320.34/x - Step 3: Cross multiply
124,448,914.79x = 171,739,476.53 × 68,694,320.34 - Step 4: Simplify right side
124,448,914.79x = 11,797,526,615,432,262 - Step 5: Solve for x
x = 11,797,526,615,432,262/124,448,914.79 - Step 6: Final answer
x = 94,798,147.78
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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.