Finding the Fourth Proportional to 81,124,291.25, 121,601,406.21 and 29,973,685.49
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Solution
The fourth proportional to 81,124,291.25, 121,601,406.21 and 29,973,685.49 is: 44,929,111.23
Step by Step Solution
- Step 1: Write the proportion equation
81,124,291.25 : 121,601,406.21 = 29,973,685.49 : x - Step 2: Convert to fraction form
81,124,291.25/121,601,406.21 = 29,973,685.49/x - Step 3: Cross multiply
81,124,291.25x = 121,601,406.21 × 29,973,685.49 - Step 4: Simplify right side
81,124,291.25x = 3,644,842,304,880,272.50 - Step 5: Solve for x
x = 3,644,842,304,880,272.50/81,124,291.25 - Step 6: Final answer
x = 44,929,111.23
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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.