Finding the Fourth Proportional to 470,439,838.58, 649,207,515.47 and 261,591,497.19
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Solution
The fourth proportional to 470,439,838.58, 649,207,515.47 and 261,591,497.19 is: 360,996,565.41
Step by Step Solution
- Step 1: Write the proportion equation
470,439,838.58 : 649,207,515.47 = 261,591,497.19 : x - Step 2: Convert to fraction form
470,439,838.58/649,207,515.47 = 261,591,497.19/x - Step 3: Cross multiply
470,439,838.58x = 649,207,515.47 × 261,591,497.19 - Step 4: Simplify right side
470,439,838.58x = 169,827,165,957,489,440 - Step 5: Solve for x
x = 169,827,165,957,489,440/470,439,838.58 - Step 6: Final answer
x = 360,996,565.41
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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.