Finding the Fourth Proportional to 19,989,261.71, 29,964,737.76 and 8,458,867.53
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Solution
The fourth proportional to 19,989,261.71, 29,964,737.76 and 8,458,867.53 is: 12,680,195.55
Step by Step Solution
- Step 1: Write the proportion equation
19,989,261.71 : 29,964,737.76 = 8,458,867.53 : x - Step 2: Convert to fraction form
19,989,261.71/29,964,737.76 = 8,458,867.53/x - Step 3: Cross multiply
19,989,261.71x = 29,964,737.76 × 8,458,867.53 - Step 4: Simplify right side
19,989,261.71x = 253,467,747,275,094.50 - Step 5: Solve for x
x = 253,467,747,275,094.50/19,989,261.71 - Step 6: Final answer
x = 12,680,195.55
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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.