Finding the Fourth Proportional to 256,025,865.62, 353,316,573.84 and 138,551,164.70
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Solution
The fourth proportional to 256,025,865.62, 353,316,573.84 and 138,551,164.70 is: 191,201,083.12
Step by Step Solution
- Step 1: Write the proportion equation
256,025,865.62 : 353,316,573.84 = 138,551,164.70 : x - Step 2: Convert to fraction form
256,025,865.62/353,316,573.84 = 138,551,164.70/x - Step 3: Cross multiply
256,025,865.62x = 353,316,573.84 × 138,551,164.70 - Step 4: Simplify right side
256,025,865.62x = 48,952,422,813,345,544 - Step 5: Solve for x
x = 48,952,422,813,345,544/256,025,865.62 - Step 6: Final answer
x = 191,201,083.12
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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.