Finding the Fourth Proportional to 312,670,867.13, 469,006,315.27 and 214,205,478.65
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Solution
The fourth proportional to 312,670,867.13, 469,006,315.27 and 214,205,478.65 is: 321,308,227.96
Step by Step Solution
- Step 1: Write the proportion equation
312,670,867.13 : 469,006,315.27 = 214,205,478.65 : x - Step 2: Convert to fraction form
312,670,867.13/469,006,315.27 = 214,205,478.65/x - Step 3: Cross multiply
312,670,867.13x = 469,006,315.27 × 214,205,478.65 - Step 4: Simplify right side
312,670,867.13x = 100,463,722,252,283,152 - Step 5: Solve for x
x = 100,463,722,252,283,152/312,670,867.13 - Step 6: Final answer
x = 321,308,227.96
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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.