Finding the Fourth Proportional to 316,542,416.62, 436,852,768.64 and 199,168,357.36
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Solution
The fourth proportional to 316,542,416.62, 436,852,768.64 and 199,168,357.36 is: 274,867,580.99
Step by Step Solution
- Step 1: Write the proportion equation
316,542,416.62 : 436,852,768.64 = 199,168,357.36 : x - Step 2: Convert to fraction form
316,542,416.62/436,852,768.64 = 199,168,357.36/x - Step 3: Cross multiply
316,542,416.62x = 436,852,768.64 × 199,168,357.36 - Step 4: Simplify right side
316,542,416.62x = 87,007,248,338,196,928 - Step 5: Solve for x
x = 87,007,248,338,196,928/316,542,416.62 - Step 6: Final answer
x = 274,867,580.99
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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.