Finding the Fourth Proportional to 486,034,435.85, 670,655,368.99 and 295,196,144.68
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Solution
The fourth proportional to 486,034,435.85, 670,655,368.99 and 295,196,144.68 is: 407,326,857.38
Step by Step Solution
- Step 1: Write the proportion equation
486,034,435.85 : 670,655,368.99 = 295,196,144.68 : x - Step 2: Convert to fraction form
486,034,435.85/670,655,368.99 = 295,196,144.68/x - Step 3: Cross multiply
486,034,435.85x = 670,655,368.99 × 295,196,144.68 - Step 4: Simplify right side
486,034,435.85x = 197,974,879,334,790,848 - Step 5: Solve for x
x = 197,974,879,334,790,848/486,034,435.85 - Step 6: Final answer
x = 407,326,857.38
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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.