Finding the Fourth Proportional to 448,403,497.60, 672,605,246.40 and 376,977,827.20
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Solution
The fourth proportional to 448,403,497.60, 672,605,246.40 and 376,977,827.20 is: 565,466,740.80
Step by Step Solution
- Step 1: Write the proportion equation
448,403,497.60 : 672,605,246.40 = 376,977,827.20 : x - Step 2: Convert to fraction form
448,403,497.60/672,605,246.40 = 376,977,827.20/x - Step 3: Cross multiply
448,403,497.60x = 672,605,246.40 × 376,977,827.20 - Step 4: Simplify right side
448,403,497.60x = 253,557,264,351,192,608 - Step 5: Solve for x
x = 253,557,264,351,192,608/448,403,497.60 - Step 6: Final answer
x = 565,466,740.80
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1.5x scale
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.