Finding the Fourth Proportional to 239,224,368.75, 330,129,761.31 and 129,216,081.75
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Solution
The fourth proportional to 239,224,368.75, 330,129,761.31 and 129,216,081.75 is: 178,318,264.35
Step by Step Solution
- Step 1: Write the proportion equation
239,224,368.75 : 330,129,761.31 = 129,216,081.75 : x - Step 2: Convert to fraction form
239,224,368.75/330,129,761.31 = 129,216,081.75/x - Step 3: Cross multiply
239,224,368.75x = 330,129,761.31 × 129,216,081.75 - Step 4: Simplify right side
239,224,368.75x = 42,658,074,225,540,944 - Step 5: Solve for x
x = 42,658,074,225,540,944/239,224,368.75 - Step 6: Final answer
x = 178,318,264.35
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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.