Finding the Fourth Proportional to 38,479,154.08, 53,099,337.36 and 21,075,576.16
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Solution
The fourth proportional to 38,479,154.08, 53,099,337.36 and 21,075,576.16 is: 29,083,257.03
Step by Step Solution
- Step 1: Write the proportion equation
38,479,154.08 : 53,099,337.36 = 21,075,576.16 : x - Step 2: Convert to fraction form
38,479,154.08/53,099,337.36 = 21,075,576.16/x - Step 3: Cross multiply
38,479,154.08x = 53,099,337.36 × 21,075,576.16 - Step 4: Simplify right side
38,479,154.08x = 1,119,099,128,576,213.38 - Step 5: Solve for x
x = 1,119,099,128,576,213.38/38,479,154.08 - Step 6: Final answer
x = 29,083,257.03
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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.