Finding the Fourth Proportional to 287,963,212.64, 397,276,159.91 and 167,240,648.79
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Solution
The fourth proportional to 287,963,212.64, 397,276,159.91 and 167,240,648.79 is: 230,726,425.51
Step by Step Solution
- Step 1: Write the proportion equation
287,963,212.64 : 397,276,159.91 = 167,240,648.79 : x - Step 2: Convert to fraction form
287,963,212.64/397,276,159.91 = 167,240,648.79/x - Step 3: Cross multiply
287,963,212.64x = 397,276,159.91 × 167,240,648.79 - Step 4: Simplify right side
287,963,212.64x = 66,440,722,730,030,648 - Step 5: Solve for x
x = 66,440,722,730,030,648/287,963,212.64 - Step 6: Final answer
x = 230,726,425.51
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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.