Finding the Fourth Proportional to 86,565,129.23, 129,847,693.86 and 21,869,120.27
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Solution
The fourth proportional to 86,565,129.23, 129,847,693.86 and 21,869,120.27 is: 32,803,680.40
Step by Step Solution
- Step 1: Write the proportion equation
86,565,129.23 : 129,847,693.86 = 21,869,120.27 : x - Step 2: Convert to fraction form
86,565,129.23/129,847,693.86 = 21,869,120.27/x - Step 3: Cross multiply
86,565,129.23x = 129,847,693.86 × 21,869,120.27 - Step 4: Simplify right side
86,565,129.23x = 2,839,654,833,157,242 - Step 5: Solve for x
x = 2,839,654,833,157,242/86,565,129.23 - Step 6: Final answer
x = 32,803,680.40
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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.