Finding the Fourth Proportional to 57,754,385.76, 79,671,238.32 and 39,163,238.24
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Solution
The fourth proportional to 57,754,385.76, 79,671,238.32 and 39,163,238.24 is: 54,025,051.88
Step by Step Solution
- Step 1: Write the proportion equation
57,754,385.76 : 79,671,238.32 = 39,163,238.24 : x - Step 2: Convert to fraction form
57,754,385.76/79,671,238.32 = 39,163,238.24/x - Step 3: Cross multiply
57,754,385.76x = 79,671,238.32 × 39,163,238.24 - Step 4: Simplify right side
57,754,385.76x = 3,120,183,687,201,977 - Step 5: Solve for x
x = 3,120,183,687,201,977/57,754,385.76 - Step 6: Final answer
x = 54,025,051.88
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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.