Finding the Fourth Proportional to 458,723,261.12, 688,084,891.68 and 458,723,261.12
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Solution
The fourth proportional to 458,723,261.12, 688,084,891.68 and 458,723,261.12 is: 688,084,891.68
Step by Step Solution
- Step 1: Write the proportion equation
458,723,261.12 : 688,084,891.68 = 458,723,261.12 : x - Step 2: Convert to fraction form
458,723,261.12/688,084,891.68 = 458,723,261.12/x - Step 3: Cross multiply
458,723,261.12x = 688,084,891.68 × 458,723,261.12 - Step 4: Simplify right side
458,723,261.12x = 315,640,545,441,718,592 - Step 5: Solve for x
x = 315,640,545,441,718,592/458,723,261.12 - Step 6: Final answer
x = 688,084,891.68
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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.