Finding the Fourth Proportional to 12,605,138.56, 18,912,473.07 and 4,934,265.63
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Solution
The fourth proportional to 12,605,138.56, 18,912,473.07 and 4,934,265.63 is: 7,403,263.78
Step by Step Solution
- Step 1: Write the proportion equation
12,605,138.56 : 18,912,473.07 = 4,934,265.63 : x - Step 2: Convert to fraction form
12,605,138.56/18,912,473.07 = 4,934,265.63/x - Step 3: Cross multiply
12,605,138.56x = 18,912,473.07 × 4,934,265.63 - Step 4: Simplify right side
12,605,138.56x = 93,319,165,785,931.55 - Step 5: Solve for x
x = 93,319,165,785,931.55/12,605,138.56 - Step 6: Final answer
x = 7,403,263.78
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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.