Finding the Fourth Proportional to 57,643,542.76, 79,540,232.70 and 34,433,742.76
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Solution
The fourth proportional to 57,643,542.76, 79,540,232.70 and 34,433,742.76 is: 47,513,871.99
Step by Step Solution
- Step 1: Write the proportion equation
57,643,542.76 : 79,540,232.70 = 34,433,742.76 : x - Step 2: Convert to fraction form
57,643,542.76/79,540,232.70 = 34,433,742.76/x - Step 3: Cross multiply
57,643,542.76x = 79,540,232.70 × 34,433,742.76 - Step 4: Simplify right side
57,643,542.76x = 2,738,867,911,862,340 - Step 5: Solve for x
x = 2,738,867,911,862,340/57,643,542.76 - Step 6: Final answer
x = 47,513,871.99
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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.