Finding the Fourth Proportional to 57,579,601.20, 86,201,440.20 and 55,899,985.20
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Solution
The fourth proportional to 57,579,601.20, 86,201,440.20 and 55,899,985.20 is: 83,686,915.70
Step by Step Solution
- Step 1: Write the proportion equation
57,579,601.20 : 86,201,440.20 = 55,899,985.20 : x - Step 2: Convert to fraction form
57,579,601.20/86,201,440.20 = 55,899,985.20/x - Step 3: Cross multiply
57,579,601.20x = 86,201,440.20 × 55,899,985.20 - Step 4: Simplify right side
57,579,601.20x = 4,818,659,231,398,685 - Step 5: Solve for x
x = 4,818,659,231,398,685/57,579,601.20 - Step 6: Final answer
x = 83,686,915.70
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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.