Finding the Fourth Proportional to 208,213,638.36, 310,458,974.06 and 202,493,132.70
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Solution
The fourth proportional to 208,213,638.36, 310,458,974.06 and 202,493,132.70 is: 301,929,358.36
Step by Step Solution
- Step 1: Write the proportion equation
208,213,638.36 : 310,458,974.06 = 202,493,132.70 : x - Step 2: Convert to fraction form
208,213,638.36/310,458,974.06 = 202,493,132.70/x - Step 3: Cross multiply
208,213,638.36x = 310,458,974.06 × 202,493,132.70 - Step 4: Simplify right side
208,213,638.36x = 62,865,810,232,237,432 - Step 5: Solve for x
x = 62,865,810,232,237,432/208,213,638.36 - Step 6: Final answer
x = 301,929,358.36
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.