Finding the Fourth Proportional to 21,456,567.20, 32,184,850.80 and 19,118,226.80
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Solution
The fourth proportional to 21,456,567.20, 32,184,850.80 and 19,118,226.80 is: 28,677,340.20
Step by Step Solution
- Step 1: Write the proportion equation
21,456,567.20 : 32,184,850.80 = 19,118,226.80 : x - Step 2: Convert to fraction form
21,456,567.20/32,184,850.80 = 19,118,226.80/x - Step 3: Cross multiply
21,456,567.20x = 32,184,850.80 × 19,118,226.80 - Step 4: Simplify right side
21,456,567.20x = 615,317,277,118,561.50 - Step 5: Solve for x
x = 615,317,277,118,561.50/21,456,567.20 - Step 6: Final answer
x = 28,677,340.20
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1.5x scale
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.