Finding the Fourth Proportional to 19,723,543.80, 29,585,315.70 and 19,723,543.80
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Solution
The fourth proportional to 19,723,543.80, 29,585,315.70 and 19,723,543.80 is: 29,585,315.70
Step by Step Solution
- Step 1: Write the proportion equation
19,723,543.80 : 29,585,315.70 = 19,723,543.80 : x - Step 2: Convert to fraction form
19,723,543.80/29,585,315.70 = 19,723,543.80/x - Step 3: Cross multiply
19,723,543.80x = 29,585,315.70 × 19,723,543.80 - Step 4: Simplify right side
19,723,543.80x = 583,527,270,045,777.62 - Step 5: Solve for x
x = 583,527,270,045,777.62/19,723,543.80 - Step 6: Final answer
x = 29,585,315.70
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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.