Finding the Fourth Proportional to 385,734,190.07, 532,357,341.57 and 216,234,208.05
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Solution
The fourth proportional to 385,734,190.07, 532,357,341.57 and 216,234,208.05 is: 298,427,961.84
Step by Step Solution
- Step 1: Write the proportion equation
385,734,190.07 : 532,357,341.57 = 216,234,208.05 : x - Step 2: Convert to fraction form
385,734,190.07/532,357,341.57 = 216,234,208.05/x - Step 3: Cross multiply
385,734,190.07x = 532,357,341.57 × 216,234,208.05 - Step 4: Simplify right side
385,734,190.07x = 115,113,868,153,992,304 - Step 5: Solve for x
x = 115,113,868,153,992,304/385,734,190.07 - Step 6: Final answer
x = 298,427,961.84
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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.