Finding the Fourth Proportional to 842,924,142.05, 1,263,874,213.26 and 422,256,288.90
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Solution
The fourth proportional to 842,924,142.05, 1,263,874,213.26 and 422,256,288.90 is: 633,127,951.03
Step by Step Solution
- Step 1: Write the proportion equation
842,924,142.05 : 1,263,874,213.26 = 422,256,288.90 : x - Step 2: Convert to fraction form
842,924,142.05/1,263,874,213.26 = 422,256,288.90/x - Step 3: Cross multiply
842,924,142.05x = 1,263,874,213.26 × 422,256,288.90 - Step 4: Simplify right side
842,924,142.05x = 533,678,834,927,574,720 - Step 5: Solve for x
x = 533,678,834,927,574,720/842,924,142.05 - Step 6: Final answer
x = 633,127,951.03
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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.