Finding the Fourth Proportional to 520,087,949.99, 717,722,330.21 and 281,932,397.99
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Solution
The fourth proportional to 520,087,949.99, 717,722,330.21 and 281,932,397.99 is: 389,067,229.20
Step by Step Solution
- Step 1: Write the proportion equation
520,087,949.99 : 717,722,330.21 = 281,932,397.99 : x - Step 2: Convert to fraction form
520,087,949.99/717,722,330.21 = 281,932,397.99/x - Step 3: Cross multiply
520,087,949.99x = 717,722,330.21 × 281,932,397.99 - Step 4: Simplify right side
520,087,949.99x = 202,349,177,642,077,664 - Step 5: Solve for x
x = 202,349,177,642,077,664/520,087,949.99 - Step 6: Final answer
x = 389,067,229.20
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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.