Finding the Fourth Proportional to 99,702,395.40, 149,441,618.70 and 42,184,878.60
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Solution
The fourth proportional to 99,702,395.40, 149,441,618.70 and 42,184,878.60 is: 63,229,940.64
Step by Step Solution
- Step 1: Write the proportion equation
99,702,395.40 : 149,441,618.70 = 42,184,878.60 : x - Step 2: Convert to fraction form
99,702,395.40/149,441,618.70 = 42,184,878.60/x - Step 3: Cross multiply
99,702,395.40x = 149,441,618.70 × 42,184,878.60 - Step 4: Simplify right side
99,702,395.40x = 6,304,176,542,646,990 - Step 5: Solve for x
x = 6,304,176,542,646,990/99,702,395.40 - Step 6: Final answer
x = 63,229,940.64
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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.