Finding the Fourth Proportional to 145,865,180, 201,294,554.88 and 78,884,138.12
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Solution
The fourth proportional to 145,865,180, 201,294,554.88 and 78,884,138.12 is: 108,860,438.59
Step by Step Solution
- Step 1: Write the proportion equation
145,865,180 : 201,294,554.88 = 78,884,138.12 : x - Step 2: Convert to fraction form
145,865,180/201,294,554.88 = 78,884,138.12/x - Step 3: Cross multiply
145,865,180x = 201,294,554.88 × 78,884,138.12 - Step 4: Simplify right side
145,865,180x = 15,878,947,469,957,840 - Step 5: Solve for x
x = 15,878,947,469,957,840/145,865,180 - Step 6: Final answer
x = 108,860,438.59
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.