Finding the Fourth Proportional to 21,078,438, 29,088,263.88 and 11,420,646
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Solution
The fourth proportional to 21,078,438, 29,088,263.88 and 11,420,646 is: 15,760,502.01
Step by Step Solution
- Step 1: Write the proportion equation
21,078,438 : 29,088,263.88 = 11,420,646 : x - Step 2: Convert to fraction form
21,078,438/29,088,263.88 = 11,420,646/x - Step 3: Cross multiply
21,078,438x = 29,088,263.88 × 11,420,646 - Step 4: Simplify right side
21,078,438x = 332,206,764,528,066.44 - Step 5: Solve for x
x = 332,206,764,528,066.44/21,078,438 - Step 6: Final answer
x = 15,760,502.01
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.