Finding the Fourth Proportional to 47,762,438.11, 71,643,263.47 and 13,683,816.79
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Solution
The fourth proportional to 47,762,438.11, 71,643,263.47 and 13,683,816.79 is: 20,525,612.39
Step by Step Solution
- Step 1: Write the proportion equation
47,762,438.11 : 71,643,263.47 = 13,683,816.79 : x - Step 2: Convert to fraction form
47,762,438.11/71,643,263.47 = 13,683,816.79/x - Step 3: Cross multiply
47,762,438.11x = 71,643,263.47 × 13,683,816.79 - Step 4: Simplify right side
47,762,438.11x = 980,353,291,347,862 - Step 5: Solve for x
x = 980,353,291,347,862/47,762,438.11 - Step 6: Final answer
x = 20,525,612.39
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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.