Finding the Fourth Proportional to 138,330,476, 190,984,097.80 and 86,196,102.56
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Solution
The fourth proportional to 138,330,476, 190,984,097.80 and 86,196,102.56 is: 119,005,481.35
Step by Step Solution
- Step 1: Write the proportion equation
138,330,476 : 190,984,097.80 = 86,196,102.56 : x - Step 2: Convert to fraction form
138,330,476/190,984,097.80 = 86,196,102.56/x - Step 3: Cross multiply
138,330,476x = 190,984,097.80 × 86,196,102.56 - Step 4: Simplify right side
138,330,476x = 16,462,084,881,297,872 - Step 5: Solve for x
x = 16,462,084,881,297,872/138,330,476 - Step 6: Final answer
x = 119,005,481.35
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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.