Finding the Fourth Proportional to 239,653,970.09, 330,719,245.13 and 133,809,015.75
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Solution
The fourth proportional to 239,653,970.09, 330,719,245.13 and 133,809,015.75 is: 184,654,636.28
Step by Step Solution
- Step 1: Write the proportion equation
239,653,970.09 : 330,719,245.13 = 133,809,015.75 : x - Step 2: Convert to fraction form
239,653,970.09/330,719,245.13 = 133,809,015.75/x - Step 3: Cross multiply
239,653,970.09x = 330,719,245.13 × 133,809,015.75 - Step 4: Simplify right side
239,653,970.09x = 44,253,216,679,759,232 - Step 5: Solve for x
x = 44,253,216,679,759,232/239,653,970.09 - Step 6: Final answer
x = 184,654,636.28
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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.