Finding the Fourth Proportional to 19,414,011.60, 29,121,017.40 and 19,162,069.20
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Solution
The fourth proportional to 19,414,011.60, 29,121,017.40 and 19,162,069.20 is: 28,743,103.80
Step by Step Solution
- Step 1: Write the proportion equation
19,414,011.60 : 29,121,017.40 = 19,162,069.20 : x - Step 2: Convert to fraction form
19,414,011.60/29,121,017.40 = 19,162,069.20/x - Step 3: Cross multiply
19,414,011.60x = 29,121,017.40 × 19,162,069.20 - Step 4: Simplify right side
19,414,011.60x = 558,018,950,593,204 - Step 5: Solve for x
x = 558,018,950,593,204/19,414,011.60 - Step 6: Final answer
x = 28,743,103.80
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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.