Finding the Fourth Proportional to 66,427,221.80, 91,588,124.37 and 54,625,246.40
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Solution
The fourth proportional to 66,427,221.80, 91,588,124.37 and 54,625,246.40 is: 75,315,867.88
Step by Step Solution
- Step 1: Write the proportion equation
66,427,221.80 : 91,588,124.37 = 54,625,246.40 : x - Step 2: Convert to fraction form
66,427,221.80/91,588,124.37 = 54,625,246.40/x - Step 3: Cross multiply
66,427,221.80x = 91,588,124.37 × 54,625,246.40 - Step 4: Simplify right side
66,427,221.80x = 5,003,023,860,567,155 - Step 5: Solve for x
x = 5,003,023,860,567,155/66,427,221.80 - Step 6: Final answer
x = 75,315,867.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.