Finding the Fourth Proportional to 72,128,028.06, 99,536,763.86 and 39,088,277
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Solution
The fourth proportional to 72,128,028.06, 99,536,763.86 and 39,088,277 is: 53,941,868.40
Step by Step Solution
- Step 1: Write the proportion equation
72,128,028.06 : 99,536,763.86 = 39,088,277 : x - Step 2: Convert to fraction form
72,128,028.06/99,536,763.86 = 39,088,277/x - Step 3: Cross multiply
72,128,028.06x = 99,536,763.86 × 39,088,277 - Step 4: Simplify right side
72,128,028.06x = 3,890,720,597,443,269 - Step 5: Solve for x
x = 3,890,720,597,443,269/72,128,028.06 - Step 6: Final answer
x = 53,941,868.40
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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.