Finding the Fourth Proportional to 71,977,283.13, 99,328,435.21 and 38,937,523.50
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Solution
The fourth proportional to 71,977,283.13, 99,328,435.21 and 38,937,523.50 is: 53,733,665.84
Step by Step Solution
- Step 1: Write the proportion equation
71,977,283.13 : 99,328,435.21 = 38,937,523.50 : x - Step 2: Convert to fraction form
71,977,283.13/99,328,435.21 = 38,937,523.50/x - Step 3: Cross multiply
71,977,283.13x = 99,328,435.21 × 38,937,523.50 - Step 4: Simplify right side
71,977,283.13x = 3,867,603,280,256,274.50 - Step 5: Solve for x
x = 3,867,603,280,256,274.50/71,977,283.13 - Step 6: Final answer
x = 53,733,665.84
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.