Finding the Fourth Proportional to 9,784,891.20, 14,670,338.40 and 4,389,124.80
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Solution
The fourth proportional to 9,784,891.20, 14,670,338.40 and 4,389,124.80 is: 6,580,547.99
Step by Step Solution
- Step 1: Write the proportion equation
9,784,891.20 : 14,670,338.40 = 4,389,124.80 : x - Step 2: Convert to fraction form
9,784,891.20/14,670,338.40 = 4,389,124.80/x - Step 3: Cross multiply
9,784,891.20x = 14,670,338.40 × 4,389,124.80 - Step 4: Simplify right side
9,784,891.20x = 64,389,946,095,832.32 - Step 5: Solve for x
x = 64,389,946,095,832.32/9,784,891.20 - Step 6: Final answer
x = 6,580,547.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.