Finding the Fourth Proportional to 126,739,829.28, 174,896,439.12 and 71,734,504.80
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Solution
The fourth proportional to 126,739,829.28, 174,896,439.12 and 71,734,504.80 is: 98,991,055.32
Step by Step Solution
- Step 1: Write the proportion equation
126,739,829.28 : 174,896,439.12 = 71,734,504.80 : x - Step 2: Convert to fraction form
126,739,829.28/174,896,439.12 = 71,734,504.80/x - Step 3: Cross multiply
126,739,829.28x = 174,896,439.12 × 71,734,504.80 - Step 4: Simplify right side
126,739,829.28x = 12,546,109,451,556,548 - Step 5: Solve for x
x = 12,546,109,451,556,548/126,739,829.28 - Step 6: Final answer
x = 98,991,055.32
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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.