Finding the Fourth Proportional to 76,957,693.62, 115,438,012.35 and 25,142,439.06
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Solution
The fourth proportional to 76,957,693.62, 115,438,012.35 and 25,142,439.06 is: 37,714,139.47
Step by Step Solution
- Step 1: Write the proportion equation
76,957,693.62 : 115,438,012.35 = 25,142,439.06 : x - Step 2: Convert to fraction form
76,957,693.62/115,438,012.35 = 25,142,439.06/x - Step 3: Cross multiply
76,957,693.62x = 115,438,012.35 × 25,142,439.06 - Step 4: Simplify right side
76,957,693.62x = 2,902,393,190,717,402 - Step 5: Solve for x
x = 2,902,393,190,717,402/76,957,693.62 - Step 6: Final answer
x = 37,714,139.47
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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.