Finding the Fourth Proportional to 880,641,467.68, 1,320,962,434.80 and 258,856,725.28
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Solution
The fourth proportional to 880,641,467.68, 1,320,962,434.80 and 258,856,725.28 is: 388,285,156.49
Step by Step Solution
- Step 1: Write the proportion equation
880,641,467.68 : 1,320,962,434.80 = 258,856,725.28 : x - Step 2: Convert to fraction form
880,641,467.68/1,320,962,434.80 = 258,856,725.28/x - Step 3: Cross multiply
880,641,467.68x = 1,320,962,434.80 × 258,856,725.28 - Step 4: Simplify right side
880,641,467.68x = 341,940,010,090,223,488 - Step 5: Solve for x
x = 341,940,010,090,223,488/880,641,467.68 - Step 6: Final answer
x = 388,285,156.49
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1.5x scale
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.