Finding the Fourth Proportional to 19,959,121.80, 29,938,682.70 and 19,959,121.80
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Solution
The fourth proportional to 19,959,121.80, 29,938,682.70 and 19,959,121.80 is: 29,938,682.70
Step by Step Solution
- Step 1: Write the proportion equation
19,959,121.80 : 29,938,682.70 = 19,959,121.80 : x - Step 2: Convert to fraction form
19,959,121.80/29,938,682.70 = 19,959,121.80/x - Step 3: Cross multiply
19,959,121.80x = 29,938,682.70 × 19,959,121.80 - Step 4: Simplify right side
19,959,121.80x = 597,549,814,540,852.88 - Step 5: Solve for x
x = 597,549,814,540,852.88/19,959,121.80 - Step 6: Final answer
x = 29,938,682.70
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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.