Finding the Fourth Proportional to 916,272,023.60, 1,372,392,496.20 and 814,151,370.80
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Solution
The fourth proportional to 916,272,023.60, 1,372,392,496.20 and 814,151,370.80 is: 1,219,436,153.54
Step by Step Solution
- Step 1: Write the proportion equation
916,272,023.60 : 1,372,392,496.20 = 814,151,370.80 : x - Step 2: Convert to fraction form
916,272,023.60/1,372,392,496.20 = 814,151,370.80/x - Step 3: Cross multiply
916,272,023.60x = 1,372,392,496.20 × 814,151,370.80 - Step 4: Simplify right side
916,272,023.60x = 1,117,335,232,056,863,744 - Step 5: Solve for x
x = 1,117,335,232,056,863,744/916,272,023.60 - Step 6: Final answer
x = 1,219,436,153.54
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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.