Finding the Fourth Proportional to 8,917,315.64, 12,305,967.90 and 4,842,963.80
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Solution
The fourth proportional to 8,917,315.64, 12,305,967.90 and 4,842,963.80 is: 6,683,329.32
Step by Step Solution
- Step 1: Write the proportion equation
8,917,315.64 : 12,305,967.90 = 4,842,963.80 : x - Step 2: Convert to fraction form
8,917,315.64/12,305,967.90 = 4,842,963.80/x - Step 3: Cross multiply
8,917,315.64x = 12,305,967.90 × 4,842,963.80 - Step 4: Simplify right side
8,917,315.64x = 59,597,357,063,662.02 - Step 5: Solve for x
x = 59,597,357,063,662.02/8,917,315.64 - Step 6: Final answer
x = 6,683,329.32
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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.