Finding the Fourth Proportional to 18,687,640.65, 28,031,460.99 and 18,687,640.65
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Solution
The fourth proportional to 18,687,640.65, 28,031,460.99 and 18,687,640.65 is: 28,031,460.99
Step by Step Solution
- Step 1: Write the proportion equation
18,687,640.65 : 28,031,460.99 = 18,687,640.65 : x - Step 2: Convert to fraction form
18,687,640.65/28,031,460.99 = 18,687,640.65/x - Step 3: Cross multiply
18,687,640.65x = 28,031,460.99 × 18,687,640.65 - Step 4: Simplify right side
18,687,640.65x = 523,841,869,875,613.19 - Step 5: Solve for x
x = 523,841,869,875,613.19/18,687,640.65 - Step 6: Final answer
x = 28,031,460.99
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1.5x scale
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.