Finding the Fourth Proportional to 6,343,670.30, 9,515,505.45 and 4,430,482.70
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Solution
The fourth proportional to 6,343,670.30, 9,515,505.45 and 4,430,482.70 is: 6,645,724.05
Step by Step Solution
- Step 1: Write the proportion equation
6,343,670.30 : 9,515,505.45 = 4,430,482.70 : x - Step 2: Convert to fraction form
6,343,670.30/9,515,505.45 = 4,430,482.70/x - Step 3: Cross multiply
6,343,670.30x = 9,515,505.45 × 4,430,482.70 - Step 4: Simplify right side
6,343,670.30x = 42,158,282,277,980.71 - Step 5: Solve for x
x = 42,158,282,277,980.71/6,343,670.30 - Step 6: Final answer
x = 6,645,724.05
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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.