Finding the Fourth Proportional to 144,924,640.84, 199,996,874.10 and 78,845,613.12
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Solution
The fourth proportional to 144,924,640.84, 199,996,874.10 and 78,845,613.12 is: 108,807,419.28
Step by Step Solution
- Step 1: Write the proportion equation
144,924,640.84 : 199,996,874.10 = 78,845,613.12 : x - Step 2: Convert to fraction form
144,924,640.84/199,996,874.10 = 78,845,613.12/x - Step 3: Cross multiply
144,924,640.84x = 199,996,874.10 × 78,845,613.12 - Step 4: Simplify right side
144,924,640.84x = 15,768,876,160,497,948 - Step 5: Solve for x
x = 15,768,876,160,497,948/144,924,640.84 - Step 6: Final answer
x = 108,807,419.28
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.