Finding the Fourth Proportional to 51,248,633.20, 76,872,949.80 and 47,889,401.20
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Solution
The fourth proportional to 51,248,633.20, 76,872,949.80 and 47,889,401.20 is: 71,834,101.80
Step by Step Solution
- Step 1: Write the proportion equation
51,248,633.20 : 76,872,949.80 = 47,889,401.20 : x - Step 2: Convert to fraction form
51,248,633.20/76,872,949.80 = 47,889,401.20/x - Step 3: Cross multiply
51,248,633.20x = 76,872,949.80 × 47,889,401.20 - Step 4: Simplify right side
51,248,633.20x = 3,681,399,534,399,660 - Step 5: Solve for x
x = 3,681,399,534,399,660/51,248,633.20 - Step 6: Final answer
x = 71,834,101.80
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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.