Finding the Fourth Proportional to 814,615,630.18, 1,124,288,027.85 and 457,423,505.26
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Solution
The fourth proportional to 814,615,630.18, 1,124,288,027.85 and 457,423,505.26 is: 631,310,953.99
Step by Step Solution
- Step 1: Write the proportion equation
814,615,630.18 : 1,124,288,027.85 = 457,423,505.26 : x - Step 2: Convert to fraction form
814,615,630.18/1,124,288,027.85 = 457,423,505.26/x - Step 3: Cross multiply
814,615,630.18x = 1,124,288,027.85 × 457,423,505.26 - Step 4: Simplify right side
814,615,630.18x = 514,275,770,620,999,424 - Step 5: Solve for x
x = 514,275,770,620,999,424/814,615,630.18 - Step 6: Final answer
x = 631,310,953.99
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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.