Finding the Fourth Proportional to 77,998,205.04, 107,636,198.09 and 43,190,148.14
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Solution
The fourth proportional to 77,998,205.04, 107,636,198.09 and 43,190,148.14 is: 59,601,670.81
Step by Step Solution
- Step 1: Write the proportion equation
77,998,205.04 : 107,636,198.09 = 43,190,148.14 : x - Step 2: Convert to fraction form
77,998,205.04/107,636,198.09 = 43,190,148.14/x - Step 3: Cross multiply
77,998,205.04x = 107,636,198.09 × 43,190,148.14 - Step 4: Simplify right side
77,998,205.04x = 4,648,823,340,382,989 - Step 5: Solve for x
x = 4,648,823,340,382,989/77,998,205.04 - Step 6: Final answer
x = 59,601,670.81
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1.5x scale
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.