Finding the Fourth Proportional to 7,121,731.68, 10,683,031.68 and 2,329,927.20
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Solution
The fourth proportional to 7,121,731.68, 10,683,031.68 and 2,329,927.20 is: 3,495,032.84
Step by Step Solution
- Step 1: Write the proportion equation
7,121,731.68 : 10,683,031.68 = 2,329,927.20 : x - Step 2: Convert to fraction form
7,121,731.68/10,683,031.68 = 2,329,927.20/x - Step 3: Cross multiply
7,121,731.68x = 10,683,031.68 × 2,329,927.20 - Step 4: Simplify right side
7,121,731.68x = 24,890,686,089,693.70 - Step 5: Solve for x
x = 24,890,686,089,693.70/7,121,731.68 - Step 6: Final answer
x = 3,495,032.84
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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.