Finding the Fourth Proportional to 10,947,215.12, 15,107,118.96 and 6,118,319.12
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Solution
The fourth proportional to 10,947,215.12, 15,107,118.96 and 6,118,319.12 is: 8,443,259.20
Step by Step Solution
- Step 1: Write the proportion equation
10,947,215.12 : 15,107,118.96 = 6,118,319.12 : x - Step 2: Convert to fraction form
10,947,215.12/15,107,118.96 = 6,118,319.12/x - Step 3: Cross multiply
10,947,215.12x = 15,107,118.96 × 6,118,319.12 - Step 4: Simplify right side
10,947,215.12x = 92,430,174,781,082.52 - Step 5: Solve for x
x = 92,430,174,781,082.52/10,947,215.12 - Step 6: Final answer
x = 8,443,259.20
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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.