Finding the Fourth Proportional to 126,698,265.07, 190,119,290.78 and 68,405,166.79
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Solution
The fourth proportional to 126,698,265.07, 190,119,290.78 and 68,405,166.79 is: 102,646,565.75
Step by Step Solution
- Step 1: Write the proportion equation
126,698,265.07 : 190,119,290.78 = 68,405,166.79 : x - Step 2: Convert to fraction form
126,698,265.07/190,119,290.78 = 68,405,166.79/x - Step 3: Cross multiply
126,698,265.07x = 190,119,290.78 × 68,405,166.79 - Step 4: Simplify right side
126,698,265.07x = 13,005,141,795,802,410 - Step 5: Solve for x
x = 13,005,141,795,802,410/126,698,265.07 - Step 6: Final answer
x = 102,646,565.75
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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.