Finding the Fourth Proportional to 1,048,142,720.05, 1,572,214,080.08 and 321,036,953.65
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Solution
The fourth proportional to 1,048,142,720.05, 1,572,214,080.08 and 321,036,953.65 is: 481,555,430.48
Step by Step Solution
- Step 1: Write the proportion equation
1,048,142,720.05 : 1,572,214,080.08 = 321,036,953.65 : x - Step 2: Convert to fraction form
1,048,142,720.05/1,572,214,080.08 = 321,036,953.65/x - Step 3: Cross multiply
1,048,142,720.05x = 1,572,214,080.08 × 321,036,953.65 - Step 4: Simplify right side
1,048,142,720.05x = 504,738,818,754,520,256 - Step 5: Solve for x
x = 504,738,818,754,520,256/1,048,142,720.05 - Step 6: Final answer
x = 481,555,430.48
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Double scale
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Similar ratio
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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.