Finding the Fourth Proportional to 857,395,256.68, 1,284,901,407.42 and 447,634,037.80
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Solution
The fourth proportional to 857,395,256.68, 1,284,901,407.42 and 447,634,037.80 is: 670,829,002.96
Step by Step Solution
- Step 1: Write the proportion equation
857,395,256.68 : 1,284,901,407.42 = 447,634,037.80 : x - Step 2: Convert to fraction form
857,395,256.68/1,284,901,407.42 = 447,634,037.80/x - Step 3: Cross multiply
857,395,256.68x = 1,284,901,407.42 × 447,634,037.80 - Step 4: Simplify right side
857,395,256.68x = 575,165,605,178,317,504 - Step 5: Solve for x
x = 575,165,605,178,317,504/857,395,256.68 - Step 6: Final answer
x = 670,829,002.96
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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.