Finding the Fourth Proportional to 52,257,809.58, 72,009,427.50 and 40,425,201.98
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Solution
The fourth proportional to 52,257,809.58, 72,009,427.50 and 40,425,201.98 is: 55,704,509.52
Step by Step Solution
- Step 1: Write the proportion equation
52,257,809.58 : 72,009,427.50 = 40,425,201.98 : x - Step 2: Convert to fraction form
52,257,809.58/72,009,427.50 = 40,425,201.98/x - Step 3: Cross multiply
52,257,809.58x = 72,009,427.50 × 40,425,201.98 - Step 4: Simplify right side
52,257,809.58x = 2,910,995,651,151,666 - Step 5: Solve for x
x = 2,910,995,651,151,666/52,257,809.58 - Step 6: Final answer
x = 55,704,509.52
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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.