Finding the Fourth Proportional to 251,336,805.53, 346,847,983.60 and 138,319,309.67
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Solution
The fourth proportional to 251,336,805.53, 346,847,983.60 and 138,319,309.67 is: 190,882,403.99
Step by Step Solution
- Step 1: Write the proportion equation
251,336,805.53 : 346,847,983.60 = 138,319,309.67 : x - Step 2: Convert to fraction form
251,336,805.53/346,847,983.60 = 138,319,309.67/x - Step 3: Cross multiply
251,336,805.53x = 346,847,983.60 × 138,319,309.67 - Step 4: Simplify right side
251,336,805.53x = 47,975,773,651,983,480 - Step 5: Solve for x
x = 47,975,773,651,983,480/251,336,805.53 - Step 6: Final answer
x = 190,882,403.99
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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.