Finding the Fourth Proportional to 66,430,135.40, 99,645,203.10 and 46,873,106.60
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Solution
The fourth proportional to 66,430,135.40, 99,645,203.10 and 46,873,106.60 is: 70,309,659.90
Step by Step Solution
- Step 1: Write the proportion equation
66,430,135.40 : 99,645,203.10 = 46,873,106.60 : x - Step 2: Convert to fraction form
66,430,135.40/99,645,203.10 = 46,873,106.60/x - Step 3: Cross multiply
66,430,135.40x = 99,645,203.10 × 46,873,106.60 - Step 4: Simplify right side
66,430,135.40x = 4,670,680,227,084,950 - Step 5: Solve for x
x = 4,670,680,227,084,950/66,430,135.40 - Step 6: Final answer
x = 70,309,659.90
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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.