Finding the Fourth Proportional to 1,984,170,412.21, 2,976,263,642.33 and 803,773,213.99
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Solution
The fourth proportional to 1,984,170,412.21, 2,976,263,642.33 and 803,773,213.99 is: 1,205,663,071.46
Step by Step Solution
- Step 1: Write the proportion equation
1,984,170,412.21 : 2,976,263,642.33 = 803,773,213.99 : x - Step 2: Convert to fraction form
1,984,170,412.21/2,976,263,642.33 = 803,773,213.99/x - Step 3: Cross multiply
1,984,170,412.21x = 2,976,263,642.33 × 803,773,213.99 - Step 4: Simplify right side
1,984,170,412.21x = 2,392,240,993,477,168,128 - Step 5: Solve for x
x = 2,392,240,993,477,168,128/1,984,170,412.21 - Step 6: Final answer
x = 1,205,663,071.46
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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.