Finding the Fourth Proportional to 20,941,415.30, 31,415,075.40 and 6,562,983.80
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Solution
The fourth proportional to 20,941,415.30, 31,415,075.40 and 6,562,983.80 is: 9,845,400.99
Step by Step Solution
- Step 1: Write the proportion equation
20,941,415.30 : 31,415,075.40 = 6,562,983.80 : x - Step 2: Convert to fraction form
20,941,415.30/31,415,075.40 = 6,562,983.80/x - Step 3: Cross multiply
20,941,415.30x = 31,415,075.40 × 6,562,983.80 - Step 4: Simplify right side
20,941,415.30x = 206,176,630,925,978.50 - Step 5: Solve for x
x = 206,176,630,925,978.50/20,941,415.30 - Step 6: Final answer
x = 9,845,400.99
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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.