Finding the Fourth Proportional to 199,903,855.48, 299,862,421.02 and 68,744,844.28
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Solution
The fourth proportional to 199,903,855.48, 299,862,421.02 and 68,744,844.28 is: 103,119,549.09
Step by Step Solution
- Step 1: Write the proportion equation
199,903,855.48 : 299,862,421.02 = 68,744,844.28 : x - Step 2: Convert to fraction form
199,903,855.48/299,862,421.02 = 68,744,844.28/x - Step 3: Cross multiply
199,903,855.48x = 299,862,421.02 × 68,744,844.28 - Step 4: Simplify right side
199,903,855.48x = 20,613,995,438,443,696 - Step 5: Solve for x
x = 20,613,995,438,443,696/199,903,855.48 - Step 6: Final answer
x = 103,119,549.09
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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.