Finding the Fourth Proportional to 99,551,497.60, 149,327,246.40 and 31,415,075.20
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Solution
The fourth proportional to 99,551,497.60, 149,327,246.40 and 31,415,075.20 is: 47,122,612.80
Step by Step Solution
- Step 1: Write the proportion equation
99,551,497.60 : 149,327,246.40 = 31,415,075.20 : x - Step 2: Convert to fraction form
99,551,497.60/149,327,246.40 = 31,415,075.20/x - Step 3: Cross multiply
99,551,497.60x = 149,327,246.40 × 31,415,075.20 - Step 4: Simplify right side
99,551,497.60x = 4,691,126,675,064,929 - Step 5: Solve for x
x = 4,691,126,675,064,929/99,551,497.60 - Step 6: Final answer
x = 47,122,612.80
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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.