Finding the Fourth Proportional to 289,702,904.10, 434,554,356.15 and 257,958,161.70
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Solution
The fourth proportional to 289,702,904.10, 434,554,356.15 and 257,958,161.70 is: 386,937,242.55
Step by Step Solution
- Step 1: Write the proportion equation
289,702,904.10 : 434,554,356.15 = 257,958,161.70 : x - Step 2: Convert to fraction form
289,702,904.10/434,554,356.15 = 257,958,161.70/x - Step 3: Cross multiply
289,702,904.10x = 434,554,356.15 × 257,958,161.70 - Step 4: Simplify right side
289,702,904.10x = 112,096,842,871,181,072 - Step 5: Solve for x
x = 112,096,842,871,181,072/289,702,904.10 - Step 6: Final answer
x = 386,937,242.55
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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.