Finding the Fourth Proportional to 118,071,858.47, 162,931,291.49 and 67,837,693.19
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Solution
The fourth proportional to 118,071,858.47, 162,931,291.49 and 67,837,693.19 is: 93,611,493.09
Step by Step Solution
- Step 1: Write the proportion equation
118,071,858.47 : 162,931,291.49 = 67,837,693.19 : x - Step 2: Convert to fraction form
118,071,858.47/162,931,291.49 = 67,837,693.19/x - Step 3: Cross multiply
118,071,858.47x = 162,931,291.49 × 67,837,693.19 - Step 4: Simplify right side
118,071,858.47x = 11,052,882,962,733,082 - Step 5: Solve for x
x = 11,052,882,962,733,082/118,071,858.47 - Step 6: Final answer
x = 93,611,493.09
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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.