Finding the Fourth Proportional to 12,785,305.68, 19,177,827.28 and 7,390,523.43
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Solution
The fourth proportional to 12,785,305.68, 19,177,827.28 and 7,390,523.43 is: 11,085,709.28
Step by Step Solution
- Step 1: Write the proportion equation
12,785,305.68 : 19,177,827.28 = 7,390,523.43 : x - Step 2: Convert to fraction form
12,785,305.68/19,177,827.28 = 7,390,523.43/x - Step 3: Cross multiply
12,785,305.68x = 19,177,827.28 × 7,390,523.43 - Step 4: Simplify right side
12,785,305.68x = 141,734,181,830,856.84 - Step 5: Solve for x
x = 141,734,181,830,856.84/12,785,305.68 - Step 6: Final answer
x = 11,085,709.28
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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.