Finding the Fourth Proportional to 456,729,144.57, 630,286,843.19 and 247,885,290.09
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Solution
The fourth proportional to 456,729,144.57, 630,286,843.19 and 247,885,290.09 is: 342,082,038.82
Step by Step Solution
- Step 1: Write the proportion equation
456,729,144.57 : 630,286,843.19 = 247,885,290.09 : x - Step 2: Convert to fraction form
456,729,144.57/630,286,843.19 = 247,885,290.09/x - Step 3: Cross multiply
456,729,144.57x = 630,286,843.19 × 247,885,290.09 - Step 4: Simplify right side
456,729,144.57x = 156,238,836,962,824,064 - Step 5: Solve for x
x = 156,238,836,962,824,064/456,729,144.57 - Step 6: Final answer
x = 342,082,038.82
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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.