Finding the Fourth Proportional to 391,522,444.21, 540,315,178.26 and 224,291,026.00
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Solution
The fourth proportional to 391,522,444.21, 540,315,178.26 and 224,291,026.00 is: 309,529,753.62
Step by Step Solution
- Step 1: Write the proportion equation
391,522,444.21 : 540,315,178.26 = 224,291,026.00 : x - Step 2: Convert to fraction form
391,522,444.21/540,315,178.26 = 224,291,026.00/x - Step 3: Cross multiply
391,522,444.21x = 540,315,178.26 × 224,291,026.00 - Step 4: Simplify right side
391,522,444.21x = 121,187,845,692,606,720 - Step 5: Solve for x
x = 121,187,845,692,606,720/391,522,444.21 - Step 6: Final answer
x = 309,529,753.62
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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.