Finding the Fourth Proportional to 5,619,756,313.81, 8,426,366,959.02 and 2,126,431,645.57
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Solution
The fourth proportional to 5,619,756,313.81, 8,426,366,959.02 and 2,126,431,645.57 is: 3,188,411,090.85
Step by Step Solution
- Step 1: Write the proportion equation
5,619,756,313.81 : 8,426,366,959.02 = 2,126,431,645.57 : x - Step 2: Convert to fraction form
5,619,756,313.81/8,426,366,959.02 = 2,126,431,645.57/x - Step 3: Cross multiply
5,619,756,313.81x = 8,426,366,959.02 × 2,126,431,645.57 - Step 4: Simplify right side
5,619,756,313.81x = 17,918,093,358,845,575,168 - Step 5: Solve for x
x = 17,918,093,358,845,575,168/5,619,756,313.81 - Step 6: Final answer
x = 3,188,411,090.85
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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.