Finding the Fourth Proportional to 18,461,904.99, 27,694,038.53 and 7,102,353.62
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Solution
The fourth proportional to 18,461,904.99, 27,694,038.53 and 7,102,353.62 is: 10,653,984.77
Step by Step Solution
- Step 1: Write the proportion equation
18,461,904.99 : 27,694,038.53 = 7,102,353.62 : x - Step 2: Convert to fraction form
18,461,904.99/27,694,038.53 = 7,102,353.62/x - Step 3: Cross multiply
18,461,904.99x = 27,694,038.53 × 7,102,353.62 - Step 4: Simplify right side
18,461,904.99x = 196,692,854,631,983 - Step 5: Solve for x
x = 196,692,854,631,983/18,461,904.99 - Step 6: Final answer
x = 10,653,984.77
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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.