Finding the Fourth Proportional to 76,937,014.10, 115,405,521.15 and 48,271,567.70
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Solution
The fourth proportional to 76,937,014.10, 115,405,521.15 and 48,271,567.70 is: 72,407,351.55
Step by Step Solution
- Step 1: Write the proportion equation
76,937,014.10 : 115,405,521.15 = 48,271,567.70 : x - Step 2: Convert to fraction form
76,937,014.10/115,405,521.15 = 48,271,567.70/x - Step 3: Cross multiply
76,937,014.10x = 115,405,521.15 × 48,271,567.70 - Step 4: Simplify right side
76,937,014.10x = 5,570,805,427,146,007 - Step 5: Solve for x
x = 5,570,805,427,146,007/76,937,014.10 - Step 6: Final answer
x = 72,407,351.55
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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.