Finding the Fourth Proportional to 8,753,936.84, 12,081,457.86 and 7,281,247.40
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Solution
The fourth proportional to 8,753,936.84, 12,081,457.86 and 7,281,247.40 is: 10,048,973.99
Step by Step Solution
- Step 1: Write the proportion equation
8,753,936.84 : 12,081,457.86 = 7,281,247.40 : x - Step 2: Convert to fraction form
8,753,936.84/12,081,457.86 = 7,281,247.40/x - Step 3: Cross multiply
8,753,936.84x = 12,081,457.86 × 7,281,247.40 - Step 4: Simplify right side
8,753,936.84x = 87,968,083,631,334.56 - Step 5: Solve for x
x = 87,968,083,631,334.56/8,753,936.84 - Step 6: Final answer
x = 10,048,973.99
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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.