Finding the Fourth Proportional to 7,142,368.44, 9,854,934.96 and 4,242,736.92
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Solution
The fourth proportional to 7,142,368.44, 9,854,934.96 and 4,242,736.92 is: 5,854,066.02
Step by Step Solution
- Step 1: Write the proportion equation
7,142,368.44 : 9,854,934.96 = 4,242,736.92 : x - Step 2: Convert to fraction form
7,142,368.44/9,854,934.96 = 4,242,736.92/x - Step 3: Cross multiply
7,142,368.44x = 9,854,934.96 × 4,242,736.92 - Step 4: Simplify right side
7,142,368.44x = 41,811,896,398,990.73 - Step 5: Solve for x
x = 41,811,896,398,990.73/7,142,368.44 - Step 6: Final answer
x = 5,854,066.02
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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.