Finding the Fourth Proportional to 5,181,201.70, 7,771,802.55 and 1,635,345.70
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Solution
The fourth proportional to 5,181,201.70, 7,771,802.55 and 1,635,345.70 is: 2,453,018.55
Step by Step Solution
- Step 1: Write the proportion equation
5,181,201.70 : 7,771,802.55 = 1,635,345.70 : x - Step 2: Convert to fraction form
5,181,201.70/7,771,802.55 = 1,635,345.70/x - Step 3: Cross multiply
5,181,201.70x = 7,771,802.55 × 1,635,345.70 - Step 4: Simplify right side
5,181,201.70x = 12,709,583,881,391.54 - Step 5: Solve for x
x = 12,709,583,881,391.54/5,181,201.70 - Step 6: Final answer
x = 2,453,018.55
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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.