Finding the Fourth Proportional to 6,142,963.05, 8,477,279.07 and 3,389,648.31
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Solution
The fourth proportional to 6,142,963.05, 8,477,279.07 and 3,389,648.31 is: 4,677,709.18
Step by Step Solution
- Step 1: Write the proportion equation
6,142,963.05 : 8,477,279.07 = 3,389,648.31 : x - Step 2: Convert to fraction form
6,142,963.05/8,477,279.07 = 3,389,648.31/x - Step 3: Cross multiply
6,142,963.05x = 8,477,279.07 × 3,389,648.31 - Step 4: Simplify right side
6,142,963.05x = 28,734,994,660,312.69 - Step 5: Solve for x
x = 28,734,994,660,312.69/6,142,963.05 - Step 6: Final answer
x = 4,677,709.18
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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.