Finding the Fourth Proportional to 819,735,867.06, 1,229,602,836.93 and 267,037,391.08
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Solution
The fourth proportional to 819,735,867.06, 1,229,602,836.93 and 267,037,391.08 is: 400,555,772.70
Step by Step Solution
- Step 1: Write the proportion equation
819,735,867.06 : 1,229,602,836.93 = 267,037,391.08 : x - Step 2: Convert to fraction form
819,735,867.06/1,229,602,836.93 = 267,037,391.08/x - Step 3: Cross multiply
819,735,867.06x = 1,229,602,836.93 × 267,037,391.08 - Step 4: Simplify right side
819,735,867.06x = 328,349,933,638,353,920 - Step 5: Solve for x
x = 328,349,933,638,353,920/819,735,867.06 - Step 6: Final answer
x = 400,555,772.70
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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.