Finding the Fourth Proportional to 138,330,475.74, 190,984,097.45 and 86,196,102.30
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Solution
The fourth proportional to 138,330,475.74, 190,984,097.45 and 86,196,102.30 is: 119,005,480.99
Step by Step Solution
- Step 1: Write the proportion equation
138,330,475.74 : 190,984,097.45 = 86,196,102.30 : x - Step 2: Convert to fraction form
138,330,475.74/190,984,097.45 = 86,196,102.30/x - Step 3: Cross multiply
138,330,475.74x = 190,984,097.45 × 86,196,102.30 - Step 4: Simplify right side
138,330,475.74x = 16,462,084,801,042,388 - Step 5: Solve for x
x = 16,462,084,801,042,388/138,330,475.74 - Step 6: Final answer
x = 119,005,480.99
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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.