Finding the Fourth Proportional to 257,794,403.76, 355,763,837.88 and 140,327,395.92
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Solution
The fourth proportional to 257,794,403.76, 355,763,837.88 and 140,327,395.92 is: 193,655,921.94
Step by Step Solution
- Step 1: Write the proportion equation
257,794,403.76 : 355,763,837.88 = 140,327,395.92 : x - Step 2: Convert to fraction form
257,794,403.76/355,763,837.88 = 140,327,395.92/x - Step 3: Cross multiply
257,794,403.76x = 355,763,837.88 × 140,327,395.92 - Step 4: Simplify right side
257,794,403.76x = 49,923,412,932,205,448 - Step 5: Solve for x
x = 49,923,412,932,205,448/257,794,403.76 - Step 6: Final answer
x = 193,655,921.94
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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.