Finding the Fourth Proportional to 155,535,845.48, 214,645,988.10 and 89,456,362.12
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Solution
The fourth proportional to 155,535,845.48, 214,645,988.10 and 89,456,362.12 is: 123,453,530.47
Step by Step Solution
- Step 1: Write the proportion equation
155,535,845.48 : 214,645,988.10 = 89,456,362.12 : x - Step 2: Convert to fraction form
155,535,845.48/214,645,988.10 = 89,456,362.12/x - Step 3: Cross multiply
155,535,845.48x = 214,645,988.10 × 89,456,362.12 - Step 4: Simplify right side
155,535,845.48x = 19,201,449,239,078,812 - Step 5: Solve for x
x = 19,201,449,239,078,812/155,535,845.48 - Step 6: Final answer
x = 123,453,530.47
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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.