Finding the Fourth Proportional to 19,948,742.95, 29,857,182.53 and 18,156,126.03
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Solution
The fourth proportional to 19,948,742.95, 29,857,182.53 and 18,156,126.03 is: 27,174,181.86
Step by Step Solution
- Step 1: Write the proportion equation
19,948,742.95 : 29,857,182.53 = 18,156,126.03 : x - Step 2: Convert to fraction form
19,948,742.95/29,857,182.53 = 18,156,126.03/x - Step 3: Cross multiply
19,948,742.95x = 29,857,182.53 × 18,156,126.03 - Step 4: Simplify right side
19,948,742.95x = 542,090,768,824,613.62 - Step 5: Solve for x
x = 542,090,768,824,613.62/19,948,742.95 - Step 6: Final answer
x = 27,174,181.86
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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.