Finding the Fourth Proportional to 19,143,107.16, 28,727,083.05 and 11,460,963.48
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Solution
The fourth proportional to 19,143,107.16, 28,727,083.05 and 11,460,963.48 is: 17,198,882.45
Step by Step Solution
- Step 1: Write the proportion equation
19,143,107.16 : 28,727,083.05 = 11,460,963.48 : x - Step 2: Convert to fraction form
19,143,107.16/28,727,083.05 = 11,460,963.48/x - Step 3: Cross multiply
19,143,107.16x = 28,727,083.05 × 11,460,963.48 - Step 4: Simplify right side
19,143,107.16x = 329,240,049,722,977.06 - Step 5: Solve for x
x = 329,240,049,722,977.06/19,143,107.16 - Step 6: Final answer
x = 17,198,882.45
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.