Finding the Fourth Proportional to 485,106,415.60, 727,659,623.40 and 194,018,465.20
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Solution
The fourth proportional to 485,106,415.60, 727,659,623.40 and 194,018,465.20 is: 291,027,697.80
Step by Step Solution
- Step 1: Write the proportion equation
485,106,415.60 : 727,659,623.40 = 194,018,465.20 : x - Step 2: Convert to fraction form
485,106,415.60/727,659,623.40 = 194,018,465.20/x - Step 3: Cross multiply
485,106,415.60x = 727,659,623.40 × 194,018,465.20 - Step 4: Simplify right side
485,106,415.60x = 141,179,403,320,078,000 - Step 5: Solve for x
x = 141,179,403,320,078,000/485,106,415.60 - Step 6: Final answer
x = 291,027,697.80
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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.