Finding the Fourth Proportional to 5,513,260.92, 7,607,185.12 and 3,220,978.74
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Solution
The fourth proportional to 5,513,260.92, 7,607,185.12 and 3,220,978.74 is: 4,444,299.28
Step by Step Solution
- Step 1: Write the proportion equation
5,513,260.92 : 7,607,185.12 = 3,220,978.74 : x - Step 2: Convert to fraction form
5,513,260.92/7,607,185.12 = 3,220,978.74/x - Step 3: Cross multiply
5,513,260.92x = 7,607,185.12 × 3,220,978.74 - Step 4: Simplify right side
5,513,260.92x = 24,502,581,518,263.63 - Step 5: Solve for x
x = 24,502,581,518,263.63/5,513,260.92 - Step 6: Final answer
x = 4,444,299.28
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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.