Finding the Fourth Proportional to 18,387,936.10, 27,581,903.95 and 8,670,287.12
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Solution
The fourth proportional to 18,387,936.10, 27,581,903.95 and 8,670,287.12 is: 13,005,430.59
Step by Step Solution
- Step 1: Write the proportion equation
18,387,936.10 : 27,581,903.95 = 8,670,287.12 : x - Step 2: Convert to fraction form
18,387,936.10/27,581,903.95 = 8,670,287.12/x - Step 3: Cross multiply
18,387,936.10x = 27,581,903.95 × 8,670,287.12 - Step 4: Simplify right side
18,387,936.10x = 239,143,026,610,041.19 - Step 5: Solve for x
x = 239,143,026,610,041.19/18,387,936.10 - Step 6: Final answer
x = 13,005,430.59
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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.