Finding the Fourth Proportional to 69,942,631.68, 96,521,459.76 and 38,581,881.12
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Solution
The fourth proportional to 69,942,631.68, 96,521,459.76 and 38,581,881.12 is: 53,243,342.39
Step by Step Solution
- Step 1: Write the proportion equation
69,942,631.68 : 96,521,459.76 = 38,581,881.12 : x - Step 2: Convert to fraction form
69,942,631.68/96,521,459.76 = 38,581,881.12/x - Step 3: Cross multiply
69,942,631.68x = 96,521,459.76 × 38,581,881.12 - Step 4: Simplify right side
69,942,631.68x = 3,723,979,485,989,183.50 - Step 5: Solve for x
x = 3,723,979,485,989,183.50/69,942,631.68 - Step 6: Final answer
x = 53,243,342.39
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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.