Finding the Fourth Proportional to 19,587,268.80, 29,380,903.20 and 14,548,420.80
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Solution
The fourth proportional to 19,587,268.80, 29,380,903.20 and 14,548,420.80 is: 21,822,631.20
Step by Step Solution
- Step 1: Write the proportion equation
19,587,268.80 : 29,380,903.20 = 14,548,420.80 : x - Step 2: Convert to fraction form
19,587,268.80/29,380,903.20 = 14,548,420.80/x - Step 3: Cross multiply
19,587,268.80x = 29,380,903.20 × 14,548,420.80 - Step 4: Simplify right side
19,587,268.80x = 427,445,743,237,666.56 - Step 5: Solve for x
x = 427,445,743,237,666.56/19,587,268.80 - Step 6: Final answer
x = 21,822,631.20
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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.