Finding the Fourth Proportional to 8,989,389.75, 12,406,572.84 and 5,069,950.88
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Solution
The fourth proportional to 8,989,389.75, 12,406,572.84 and 5,069,950.88 is: 6,997,217.45
Step by Step Solution
- Step 1: Write the proportion equation
8,989,389.75 : 12,406,572.84 = 5,069,950.88 : x - Step 2: Convert to fraction form
8,989,389.75/12,406,572.84 = 5,069,950.88/x - Step 3: Cross multiply
8,989,389.75x = 12,406,572.84 × 5,069,950.88 - Step 4: Simplify right side
8,989,389.75x = 62,900,714,825,909.23 - Step 5: Solve for x
x = 62,900,714,825,909.23/8,989,389.75 - Step 6: Final answer
x = 6,997,217.45
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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.