Finding the Fourth Proportional to 667,246,190.36, 920,799,722.75 and 369,887,679.02
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Solution
The fourth proportional to 667,246,190.36, 920,799,722.75 and 369,887,679.02 is: 510,444,985.99
Step by Step Solution
- Step 1: Write the proportion equation
667,246,190.36 : 920,799,722.75 = 369,887,679.02 : x - Step 2: Convert to fraction form
667,246,190.36/920,799,722.75 = 369,887,679.02/x - Step 3: Cross multiply
667,246,190.36x = 920,799,722.75 × 369,887,679.02 - Step 4: Simplify right side
667,246,190.36x = 340,592,472,290,709,504 - Step 5: Solve for x
x = 340,592,472,290,709,504/667,246,190.36 - Step 6: Final answer
x = 510,444,985.99
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1.5x scale
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.