Finding the Fourth Proportional to 358,996,969.96, 495,455,183.68 and 208,322,817.64
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Solution
The fourth proportional to 358,996,969.96, 495,455,183.68 and 208,322,817.64 is: 287,508,331.59
Step by Step Solution
- Step 1: Write the proportion equation
358,996,969.96 : 495,455,183.68 = 208,322,817.64 : x - Step 2: Convert to fraction form
358,996,969.96/495,455,183.68 = 208,322,817.64/x - Step 3: Cross multiply
358,996,969.96x = 495,455,183.68 × 208,322,817.64 - Step 4: Simplify right side
358,996,969.96x = 103,214,619,878,561,344 - Step 5: Solve for x
x = 103,214,619,878,561,344/358,996,969.96 - Step 6: Final answer
x = 287,508,331.59
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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.