Finding the Fourth Proportional to 929,127,349.27, 1,282,229,575.23 and 505,720,560.54
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Solution
The fourth proportional to 929,127,349.27, 1,282,229,575.23 and 505,720,560.54 is: 697,912,788.85
Step by Step Solution
- Step 1: Write the proportion equation
929,127,349.27 : 1,282,229,575.23 = 505,720,560.54 : x - Step 2: Convert to fraction form
929,127,349.27/1,282,229,575.23 = 505,720,560.54/x - Step 3: Cross multiply
929,127,349.27x = 1,282,229,575.23 × 505,720,560.54 - Step 4: Simplify right side
929,127,349.27x = 648,449,859,520,736,000 - Step 5: Solve for x
x = 648,449,859,520,736,000/929,127,349.27 - Step 6: Final answer
x = 697,912,788.85
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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.