Finding the Fourth Proportional to 31,865,390.36, 47,798,012.60 and 13,657,779.44
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Solution
The fourth proportional to 31,865,390.36, 47,798,012.60 and 13,657,779.44 is: 20,486,637.90
Step by Step Solution
- Step 1: Write the proportion equation
31,865,390.36 : 47,798,012.60 = 13,657,779.44 : x - Step 2: Convert to fraction form
31,865,390.36/47,798,012.60 = 13,657,779.44/x - Step 3: Cross multiply
31,865,390.36x = 47,798,012.60 × 13,657,779.44 - Step 4: Simplify right side
31,865,390.36x = 652,814,713,761,141 - Step 5: Solve for x
x = 652,814,713,761,141/31,865,390.36 - Step 6: Final answer
x = 20,486,637.90
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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.