Finding the Fourth Proportional to 20,773,486.68, 31,160,188.14 and 19,509,357.12
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Solution
The fourth proportional to 20,773,486.68, 31,160,188.14 and 19,509,357.12 is: 29,263,996.35
Step by Step Solution
- Step 1: Write the proportion equation
20,773,486.68 : 31,160,188.14 = 19,509,357.12 : x - Step 2: Convert to fraction form
20,773,486.68/31,160,188.14 = 19,509,357.12/x - Step 3: Cross multiply
20,773,486.68x = 31,160,188.14 × 19,509,357.12 - Step 4: Simplify right side
20,773,486.68x = 607,915,238,349,648.62 - Step 5: Solve for x
x = 607,915,238,349,648.62/20,773,486.68 - Step 6: Final answer
x = 29,263,996.35
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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.