Finding the Fourth Proportional to 385,577,422.94, 532,112,100.18 and 216,033,122.99
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Solution
The fourth proportional to 385,577,422.94, 532,112,100.18 and 216,033,122.99 is: 298,134,257.72
Step by Step Solution
- Step 1: Write the proportion equation
385,577,422.94 : 532,112,100.18 = 216,033,122.99 : x - Step 2: Convert to fraction form
385,577,422.94/532,112,100.18 = 216,033,122.99/x - Step 3: Cross multiply
385,577,422.94x = 532,112,100.18 × 216,033,122.99 - Step 4: Simplify right side
385,577,422.94x = 114,953,838,782,653,152 - Step 5: Solve for x
x = 114,953,838,782,653,152/385,577,422.94 - Step 6: Final answer
x = 298,134,257.72
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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.