Finding the Fourth Proportional to 2,479,270,029.12, 3,421,282,250.88 and 1,421,239,475.52
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Solution
The fourth proportional to 2,479,270,029.12, 3,421,282,250.88 and 1,421,239,475.52 is: 1,961,247,195.64
Step by Step Solution
- Step 1: Write the proportion equation
2,479,270,029.12 : 3,421,282,250.88 = 1,421,239,475.52 : x - Step 2: Convert to fraction form
2,479,270,029.12/3,421,282,250.88 = 1,421,239,475.52/x - Step 3: Cross multiply
2,479,270,029.12x = 3,421,282,250.88 × 1,421,239,475.52 - Step 4: Simplify right side
2,479,270,029.12x = 4,862,461,391,846,576,128 - Step 5: Solve for x
x = 4,862,461,391,846,576,128/2,479,270,029.12 - Step 6: Final answer
x = 1,961,247,195.64
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1.5x scale
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.