Finding the Fourth Proportional to 19,107,101.70, 28,660,652.55 and 12,729,809.70
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Solution
The fourth proportional to 19,107,101.70, 28,660,652.55 and 12,729,809.70 is: 19,094,714.55
Step by Step Solution
- Step 1: Write the proportion equation
19,107,101.70 : 28,660,652.55 = 12,729,809.70 : x - Step 2: Convert to fraction form
19,107,101.70/28,660,652.55 = 12,729,809.70/x - Step 3: Cross multiply
19,107,101.70x = 28,660,652.55 × 12,729,809.70 - Step 4: Simplify right side
19,107,101.70x = 364,844,652,839,319.75 - Step 5: Solve for x
x = 364,844,652,839,319.75/19,107,101.70 - Step 6: Final answer
x = 19,094,714.55
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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.