Finding the Fourth Proportional to 7,485,417.30, 11,228,125.95 and 2,698,511.70
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Solution
The fourth proportional to 7,485,417.30, 11,228,125.95 and 2,698,511.70 is: 4,047,767.55
Step by Step Solution
- Step 1: Write the proportion equation
7,485,417.30 : 11,228,125.95 = 2,698,511.70 : x - Step 2: Convert to fraction form
7,485,417.30/11,228,125.95 = 2,698,511.70/x - Step 3: Cross multiply
7,485,417.30x = 11,228,125.95 × 2,698,511.70 - Step 4: Simplify right side
7,485,417.30x = 30,299,229,245,148.61 - Step 5: Solve for x
x = 30,299,229,245,148.61/7,485,417.30 - Step 6: Final answer
x = 4,047,767.55
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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.