Finding the Fourth Proportional to 4,724,138.94, 6,515,952.57 and 3,153,478.74
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Solution
The fourth proportional to 4,724,138.94, 6,515,952.57 and 3,153,478.74 is: 4,349,558.33
Step by Step Solution
- Step 1: Write the proportion equation
4,724,138.94 : 6,515,952.57 = 3,153,478.74 : x - Step 2: Convert to fraction form
4,724,138.94/6,515,952.57 = 3,153,478.74/x - Step 3: Cross multiply
4,724,138.94x = 6,515,952.57 × 3,153,478.74 - Step 4: Simplify right side
4,724,138.94x = 20,547,917,900,343.36 - Step 5: Solve for x
x = 20,547,917,900,343.36/4,724,138.94 - Step 6: Final answer
x = 4,349,558.33
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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.