Finding the Fourth Proportional to 19,953,722.80, 29,895,154.80 and 18,678,264.40
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Solution
The fourth proportional to 19,953,722.80, 29,895,154.80 and 18,678,264.40 is: 27,984,231.88
Step by Step Solution
- Step 1: Write the proportion equation
19,953,722.80 : 29,895,154.80 = 18,678,264.40 : x - Step 2: Convert to fraction form
19,953,722.80/29,895,154.80 = 18,678,264.40/x - Step 3: Cross multiply
19,953,722.80x = 29,895,154.80 × 18,678,264.40 - Step 4: Simplify right side
19,953,722.80x = 558,389,605,633,329.06 - Step 5: Solve for x
x = 558,389,605,633,329.06/19,953,722.80 - Step 6: Final answer
x = 27,984,231.88
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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.