Finding the Fourth Proportional to 352,464,368.64, 486,413,955.62 and 211,358,562.45
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Solution
The fourth proportional to 352,464,368.64, 486,413,955.62 and 211,358,562.45 is: 291,682,687.84
Step by Step Solution
- Step 1: Write the proportion equation
352,464,368.64 : 486,413,955.62 = 211,358,562.45 : x - Step 2: Convert to fraction form
352,464,368.64/486,413,955.62 = 211,358,562.45/x - Step 3: Cross multiply
352,464,368.64x = 486,413,955.62 × 211,358,562.45 - Step 4: Simplify right side
352,464,368.64x = 102,807,754,414,404,496 - Step 5: Solve for x
x = 102,807,754,414,404,496/352,464,368.64 - Step 6: Final answer
x = 291,682,687.84
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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.