Finding the Fourth Proportional to 65,165,787.20, 97,748,680.80 and 19,729,841.60
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Solution
The fourth proportional to 65,165,787.20, 97,748,680.80 and 19,729,841.60 is: 29,594,762.40
Step by Step Solution
- Step 1: Write the proportion equation
65,165,787.20 : 97,748,680.80 = 19,729,841.60 : x - Step 2: Convert to fraction form
65,165,787.20/97,748,680.80 = 19,729,841.60/x - Step 3: Cross multiply
65,165,787.20x = 97,748,680.80 × 19,729,841.60 - Step 4: Simplify right side
65,165,787.20x = 1,928,565,988,792,961.25 - Step 5: Solve for x
x = 1,928,565,988,792,961.25/65,165,787.20 - Step 6: Final answer
x = 29,594,762.40
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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.