Finding the Fourth Proportional to 37,643,628,459.45, 51,949,138,829.58 and 20,497,421,722.80
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Solution
The fourth proportional to 37,643,628,459.45, 51,949,138,829.58 and 20,497,421,722.80 is: 28,286,949,220.99
Step by Step Solution
- Step 1: Write the proportion equation
37,643,628,459.45 : 51,949,138,829.58 = 20,497,421,722.80 : x - Step 2: Convert to fraction form
37,643,628,459.45/51,949,138,829.58 = 20,497,421,722.80/x - Step 3: Cross multiply
37,643,628,459.45x = 51,949,138,829.58 × 20,497,421,722.80 - Step 4: Simplify right side
37,643,628,459.45x = 1,064,823,406,726,186,008,576 - Step 5: Solve for x
x = 1,064,823,406,726,186,008,576/37,643,628,459.45 - Step 6: Final answer
x = 28,286,949,220.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.