Finding the Fourth Proportional to 11,142,696.48, 15,372,162.24 and 7,698,958.80
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Solution
The fourth proportional to 11,142,696.48, 15,372,162.24 and 7,698,958.80 is: 10,621,275.02
Step by Step Solution
- Step 1: Write the proportion equation
11,142,696.48 : 15,372,162.24 = 7,698,958.80 : x - Step 2: Convert to fraction form
11,142,696.48/15,372,162.24 = 7,698,958.80/x - Step 3: Cross multiply
11,142,696.48x = 15,372,162.24 × 7,698,958.80 - Step 4: Simplify right side
11,142,696.48x = 118,349,643,752,675.70 - Step 5: Solve for x
x = 118,349,643,752,675.70/11,142,696.48 - Step 6: Final answer
x = 10,621,275.02
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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.