Finding the Fourth Proportional to 71,975,455.81, 99,325,829.84 and 38,935,623.50
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Solution
The fourth proportional to 71,975,455.81, 99,325,829.84 and 38,935,623.50 is: 53,730,998.58
Step by Step Solution
- Step 1: Write the proportion equation
71,975,455.81 : 99,325,829.84 = 38,935,623.50 : x - Step 2: Convert to fraction form
71,975,455.81/99,325,829.84 = 38,935,623.50/x - Step 3: Cross multiply
71,975,455.81x = 99,325,829.84 × 38,935,623.50 - Step 4: Simplify right side
71,975,455.81x = 3,867,313,113,783,997.50 - Step 5: Solve for x
x = 3,867,313,113,783,997.50/71,975,455.81 - Step 6: Final answer
x = 53,730,998.58
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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.