Finding the Fourth Proportional to 19,808,380.80, 27,750,628.80 and 19,808,380.80
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Solution
The fourth proportional to 19,808,380.80, 27,750,628.80 and 19,808,380.80 is: 27,750,628.80
Step by Step Solution
- Step 1: Write the proportion equation
19,808,380.80 : 27,750,628.80 = 19,808,380.80 : x - Step 2: Convert to fraction form
19,808,380.80/27,750,628.80 = 19,808,380.80/x - Step 3: Cross multiply
19,808,380.80x = 27,750,628.80 × 19,808,380.80 - Step 4: Simplify right side
19,808,380.80x = 549,695,022,709,847.06 - Step 5: Solve for x
x = 549,695,022,709,847.06/19,808,380.80 - Step 6: Final answer
x = 27,750,628.80
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.