Finding the Fourth Proportional to 524,489,355.18, 723,797,621.94 and 289,541,946.28
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Solution
The fourth proportional to 524,489,355.18, 723,797,621.94 and 289,541,946.28 is: 399,569,162.09
Step by Step Solution
- Step 1: Write the proportion equation
524,489,355.18 : 723,797,621.94 = 289,541,946.28 : x - Step 2: Convert to fraction form
524,489,355.18/723,797,621.94 = 289,541,946.28/x - Step 3: Cross multiply
524,489,355.18x = 723,797,621.94 × 289,541,946.28 - Step 4: Simplify right side
524,489,355.18x = 209,569,772,171,420,480 - Step 5: Solve for x
x = 209,569,772,171,420,480/524,489,355.18 - Step 6: Final answer
x = 399,569,162.09
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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.