Finding the Fourth Proportional to 19,403,438.57, 29,125,345.24 and 14,291,640.45
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Solution
The fourth proportional to 19,403,438.57, 29,125,345.24 and 14,291,640.45 is: 21,452,329.73
Step by Step Solution
- Step 1: Write the proportion equation
19,403,438.57 : 29,125,345.24 = 14,291,640.45 : x - Step 2: Convert to fraction form
19,403,438.57/29,125,345.24 = 14,291,640.45/x - Step 3: Cross multiply
19,403,438.57x = 29,125,345.24 × 14,291,640.45 - Step 4: Simplify right side
19,403,438.57x = 416,248,962,129,861.12 - Step 5: Solve for x
x = 416,248,962,129,861.12/19,403,438.57 - Step 6: Final answer
x = 21,452,329.73
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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.