Finding the Fourth Proportional to 98,173,905.10, 135,480,398.25 and 54,119,936.14
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Solution
The fourth proportional to 98,173,905.10, 135,480,398.25 and 54,119,936.14 is: 74,685,737.46
Step by Step Solution
- Step 1: Write the proportion equation
98,173,905.10 : 135,480,398.25 = 54,119,936.14 : x - Step 2: Convert to fraction form
98,173,905.10/135,480,398.25 = 54,119,936.14/x - Step 3: Cross multiply
98,173,905.10x = 135,480,398.25 × 54,119,936.14 - Step 4: Simplify right side
98,173,905.10x = 7,332,190,501,511,768 - Step 5: Solve for x
x = 7,332,190,501,511,768/98,173,905.10 - Step 6: Final answer
x = 74,685,737.46
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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.