Finding the Fourth Proportional to 1,579,572,212.80, 2,369,358,319.20 and 1,120,407,188.80
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Solution
The fourth proportional to 1,579,572,212.80, 2,369,358,319.20 and 1,120,407,188.80 is: 1,680,610,783.20
Step by Step Solution
- Step 1: Write the proportion equation
1,579,572,212.80 : 2,369,358,319.20 = 1,120,407,188.80 : x - Step 2: Convert to fraction form
1,579,572,212.80/2,369,358,319.20 = 1,120,407,188.80/x - Step 3: Cross multiply
1,579,572,212.80x = 2,369,358,319.20 × 1,120,407,188.80 - Step 4: Simplify right side
1,579,572,212.80x = 2,654,646,093,674,764,800 - Step 5: Solve for x
x = 2,654,646,093,674,764,800/1,579,572,212.80 - Step 6: Final answer
x = 1,680,610,783.20
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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.