Finding the Fourth Proportional to 664,341,778.53, 916,773,885.42 and 366,977,620.63
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Solution
The fourth proportional to 664,341,778.53, 916,773,885.42 and 366,977,620.63 is: 506,419,301.03
Step by Step Solution
- Step 1: Write the proportion equation
664,341,778.53 : 916,773,885.42 = 366,977,620.63 : x - Step 2: Convert to fraction form
664,341,778.53/916,773,885.42 = 366,977,620.63/x - Step 3: Cross multiply
664,341,778.53x = 916,773,885.42 × 366,977,620.63 - Step 4: Simplify right side
664,341,778.53x = 336,435,499,129,497,792 - Step 5: Solve for x
x = 336,435,499,129,497,792/664,341,778.53 - Step 6: Final answer
x = 506,419,301.03
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.