Finding the Fourth Proportional to 1,259,714,549.20, 1,889,571,823.80 and 865,172,750.80
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Solution
The fourth proportional to 1,259,714,549.20, 1,889,571,823.80 and 865,172,750.80 is: 1,297,759,126.20
Step by Step Solution
- Step 1: Write the proportion equation
1,259,714,549.20 : 1,889,571,823.80 = 865,172,750.80 : x - Step 2: Convert to fraction form
1,259,714,549.20/1,889,571,823.80 = 865,172,750.80/x - Step 3: Cross multiply
1,259,714,549.20x = 1,889,571,823.80 × 865,172,750.80 - Step 4: Simplify right side
1,259,714,549.20x = 1,634,806,052,631,218,688 - Step 5: Solve for x
x = 1,634,806,052,631,218,688/1,259,714,549.20 - Step 6: Final answer
x = 1,297,759,126.20
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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.