Finding the Fourth Proportional to 862,217,428.37, 1,189,860,572.42 and 465,740,593.08
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Solution
The fourth proportional to 862,217,428.37, 1,189,860,572.42 and 465,740,593.08 is: 642,722,300.03
Step by Step Solution
- Step 1: Write the proportion equation
862,217,428.37 : 1,189,860,572.42 = 465,740,593.08 : x - Step 2: Convert to fraction form
862,217,428.37/1,189,860,572.42 = 465,740,593.08/x - Step 3: Cross multiply
862,217,428.37x = 1,189,860,572.42 × 465,740,593.08 - Step 4: Simplify right side
862,217,428.37x = 554,166,368,682,563,392 - Step 5: Solve for x
x = 554,166,368,682,563,392/862,217,428.37 - Step 6: Final answer
x = 642,722,300.03
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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.