Finding the Fourth Proportional to 19,440,077.40, 29,104,128.90 and 18,880,205.40
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Solution
The fourth proportional to 19,440,077.40, 29,104,128.90 and 18,880,205.40 is: 28,265,933.32
Step by Step Solution
- Step 1: Write the proportion equation
19,440,077.40 : 29,104,128.90 = 18,880,205.40 : x - Step 2: Convert to fraction form
19,440,077.40/29,104,128.90 = 18,880,205.40/x - Step 3: Cross multiply
19,440,077.40x = 29,104,128.90 × 18,880,205.40 - Step 4: Simplify right side
19,440,077.40x = 549,491,931,620,076 - Step 5: Solve for x
x = 549,491,931,620,076/19,440,077.40 - Step 6: Final answer
x = 28,265,933.32
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1.5x scale
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.