Finding the Fourth Proportional to 53,872,031.81, 74,343,412.20 and 29,425,745.81
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Solution
The fourth proportional to 53,872,031.81, 74,343,412.20 and 29,425,745.81 is: 40,607,533.76
Step by Step Solution
- Step 1: Write the proportion equation
53,872,031.81 : 74,343,412.20 = 29,425,745.81 : x - Step 2: Convert to fraction form
53,872,031.81/74,343,412.20 = 29,425,745.81/x - Step 3: Cross multiply
53,872,031.81x = 74,343,412.20 × 29,425,745.81 - Step 4: Simplify right side
53,872,031.81x = 2,187,610,350,341,458 - Step 5: Solve for x
x = 2,187,610,350,341,458/53,872,031.81 - Step 6: Final answer
x = 40,607,533.76
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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.