Finding the Fourth Proportional to 239,580,914.32, 330,621,657.96 and 129,572,626.96
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Solution
The fourth proportional to 239,580,914.32, 330,621,657.96 and 129,572,626.96 is: 178,810,223.15
Step by Step Solution
- Step 1: Write the proportion equation
239,580,914.32 : 330,621,657.96 = 129,572,626.96 : x - Step 2: Convert to fraction form
239,580,914.32/330,621,657.96 = 129,572,626.96/x - Step 3: Cross multiply
239,580,914.32x = 330,621,657.96 × 129,572,626.96 - Step 4: Simplify right side
239,580,914.32x = 42,839,516,751,747,792 - Step 5: Solve for x
x = 42,839,516,751,747,792/239,580,914.32 - Step 6: Final answer
x = 178,810,223.15
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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.