Finding the Fourth Proportional to 53,242,011.23, 79,871,841.47 and 18,689,447.87
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Solution
The fourth proportional to 53,242,011.23, 79,871,841.47 and 18,689,447.87 is: 28,037,269.50
Step by Step Solution
- Step 1: Write the proportion equation
53,242,011.23 : 79,871,841.47 = 18,689,447.87 : x - Step 2: Convert to fraction form
53,242,011.23/79,871,841.47 = 18,689,447.87/x - Step 3: Cross multiply
53,242,011.23x = 79,871,841.47 × 18,689,447.87 - Step 4: Simplify right side
53,242,011.23x = 1,492,760,617,725,504 - Step 5: Solve for x
x = 1,492,760,617,725,504/53,242,011.23 - Step 6: Final answer
x = 28,037,269.50
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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.