Finding the Fourth Proportional to 71,043,407.20, 106,565,110.80 and 32,779,655.20
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Solution
The fourth proportional to 71,043,407.20, 106,565,110.80 and 32,779,655.20 is: 49,169,482.80
Step by Step Solution
- Step 1: Write the proportion equation
71,043,407.20 : 106,565,110.80 = 32,779,655.20 : x - Step 2: Convert to fraction form
71,043,407.20/106,565,110.80 = 32,779,655.20/x - Step 3: Cross multiply
71,043,407.20x = 106,565,110.80 × 32,779,655.20 - Step 4: Simplify right side
71,043,407.20x = 3,493,167,588,373,796 - Step 5: Solve for x
x = 3,493,167,588,373,796/71,043,407.20 - Step 6: Final answer
x = 49,169,482.80
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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.