Finding the Fourth Proportional to 416,622,521.32, 623,707,849.10 and 278,104,551.53
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Solution
The fourth proportional to 416,622,521.32, 623,707,849.10 and 278,104,551.53 is: 416,338,490.56
Step by Step Solution
- Step 1: Write the proportion equation
416,622,521.32 : 623,707,849.10 = 278,104,551.53 : x - Step 2: Convert to fraction form
416,622,521.32/623,707,849.10 = 278,104,551.53/x - Step 3: Cross multiply
416,622,521.32x = 623,707,849.10 × 278,104,551.53 - Step 4: Simplify right side
416,622,521.32x = 173,455,991,657,273,120 - Step 5: Solve for x
x = 173,455,991,657,273,120/416,622,521.32 - Step 6: Final answer
x = 416,338,490.56
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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.