Finding the Fourth Proportional to 53,190,157.68, 79,785,251.10 and 12,800,641.68
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Solution
The fourth proportional to 53,190,157.68, 79,785,251.10 and 12,800,641.68 is: 19,200,966.03
Step by Step Solution
- Step 1: Write the proportion equation
53,190,157.68 : 79,785,251.10 = 12,800,641.68 : x - Step 2: Convert to fraction form
53,190,157.68/79,785,251.10 = 12,800,641.68/x - Step 3: Cross multiply
53,190,157.68x = 79,785,251.10 × 12,800,641.68 - Step 4: Simplify right side
53,190,157.68x = 1,021,302,410,679,925.75 - Step 5: Solve for x
x = 1,021,302,410,679,925.75/53,190,157.68 - Step 6: Final answer
x = 19,200,966.03
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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.