Finding the Fourth Proportional to 12,775,314.90, 19,165,992.58 and 4,139,400.90
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Solution
The fourth proportional to 12,775,314.90, 19,165,992.58 and 4,139,400.90 is: 6,210,079.95
Step by Step Solution
- Step 1: Write the proportion equation
12,775,314.90 : 19,165,992.58 = 4,139,400.90 : x - Step 2: Convert to fraction form
12,775,314.90/19,165,992.58 = 4,139,400.90/x - Step 3: Cross multiply
12,775,314.90x = 19,165,992.58 × 4,139,400.90 - Step 4: Simplify right side
12,775,314.90x = 79,335,726,935,045.31 - Step 5: Solve for x
x = 79,335,726,935,045.31/12,775,314.90 - Step 6: Final answer
x = 6,210,079.95
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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.