Finding the Fourth Proportional to 98,548,235.18, 135,997,445.30 and 54,498,197.56
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Solution
The fourth proportional to 98,548,235.18, 135,997,445.30 and 54,498,197.56 is: 75,207,999.70
Step by Step Solution
- Step 1: Write the proportion equation
98,548,235.18 : 135,997,445.30 = 54,498,197.56 : x - Step 2: Convert to fraction form
98,548,235.18/135,997,445.30 = 54,498,197.56/x - Step 3: Cross multiply
98,548,235.18x = 135,997,445.30 × 54,498,197.56 - Step 4: Simplify right side
98,548,235.18x = 7,411,615,641,614,694 - Step 5: Solve for x
x = 7,411,615,641,614,694/98,548,235.18 - Step 6: Final answer
x = 75,207,999.70
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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.