Finding the Fourth Proportional to 139,522,184.40, 209,283,276.60 and 42,477,121.20
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Solution
The fourth proportional to 139,522,184.40, 209,283,276.60 and 42,477,121.20 is: 63,715,681.80
Step by Step Solution
- Step 1: Write the proportion equation
139,522,184.40 : 209,283,276.60 = 42,477,121.20 : x - Step 2: Convert to fraction form
139,522,184.40/209,283,276.60 = 42,477,121.20/x - Step 3: Cross multiply
139,522,184.40x = 209,283,276.60 × 42,477,121.20 - Step 4: Simplify right side
139,522,184.40x = 8,889,751,105,271,324 - Step 5: Solve for x
x = 8,889,751,105,271,324/139,522,184.40 - Step 6: Final answer
x = 63,715,681.80
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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.