Finding the Fourth Proportional to 10,538,031.36, 14,542,498.56 and 5,709,135.36
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Solution
The fourth proportional to 10,538,031.36, 14,542,498.56 and 5,709,135.36 is: 7,878,615.08
Step by Step Solution
- Step 1: Write the proportion equation
10,538,031.36 : 14,542,498.56 = 5,709,135.36 : x - Step 2: Convert to fraction form
10,538,031.36/14,542,498.56 = 5,709,135.36/x - Step 3: Cross multiply
10,538,031.36x = 14,542,498.56 × 5,709,135.36 - Step 4: Simplify right side
10,538,031.36x = 83,025,092,751,645.09 - Step 5: Solve for x
x = 83,025,092,751,645.09/10,538,031.36 - Step 6: Final answer
x = 7,878,615.08
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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.