Finding the Fourth Proportional to 1,259,714,302.20, 1,889,571,453.30 and 865,172,503.80
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Solution
The fourth proportional to 1,259,714,302.20, 1,889,571,453.30 and 865,172,503.80 is: 1,297,758,755.70
Step by Step Solution
- Step 1: Write the proportion equation
1,259,714,302.20 : 1,889,571,453.30 = 865,172,503.80 : x - Step 2: Convert to fraction form
1,259,714,302.20/1,889,571,453.30 = 865,172,503.80/x - Step 3: Cross multiply
1,259,714,302.20x = 1,889,571,453.30 × 865,172,503.80 - Step 4: Simplify right side
1,259,714,302.20x = 1,634,805,265,360,565,760 - Step 5: Solve for x
x = 1,634,805,265,360,565,760/1,259,714,302.20 - Step 6: Final answer
x = 1,297,758,755.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.