Finding the Fourth Proportional to 11,221,656.28, 15,485,576.36 and 6,326,835.90
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Solution
The fourth proportional to 11,221,656.28, 15,485,576.36 and 6,326,835.90 is: 8,730,859.15
Step by Step Solution
- Step 1: Write the proportion equation
11,221,656.28 : 15,485,576.36 = 6,326,835.90 : x - Step 2: Convert to fraction form
11,221,656.28/15,485,576.36 = 6,326,835.90/x - Step 3: Cross multiply
11,221,656.28x = 15,485,576.36 × 6,326,835.90 - Step 4: Simplify right side
11,221,656.28x = 97,974,700,446,639.33 - Step 5: Solve for x
x = 97,974,700,446,639.33/11,221,656.28 - Step 6: Final answer
x = 8,730,859.15
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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.