Finding the Fourth Proportional to 639,705,824.14, 959,558,736.18 and 155,031,632.14
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Solution
The fourth proportional to 639,705,824.14, 959,558,736.18 and 155,031,632.14 is: 232,547,448.20
Step by Step Solution
- Step 1: Write the proportion equation
639,705,824.14 : 959,558,736.18 = 155,031,632.14 : x - Step 2: Convert to fraction form
639,705,824.14/959,558,736.18 = 155,031,632.14/x - Step 3: Cross multiply
639,705,824.14x = 959,558,736.18 × 155,031,632.14 - Step 4: Simplify right side
639,705,824.14x = 148,761,957,004,181,056 - Step 5: Solve for x
x = 148,761,957,004,181,056/639,705,824.14 - Step 6: Final answer
x = 232,547,448.20
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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.