Finding the Fourth Proportional to 11,262,432.81, 15,554,987.68 and 7,634,462.25
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Solution
The fourth proportional to 11,262,432.81, 15,554,987.68 and 7,634,462.25 is: 10,544,255.25
Step by Step Solution
- Step 1: Write the proportion equation
11,262,432.81 : 15,554,987.68 = 7,634,462.25 : x - Step 2: Convert to fraction form
11,262,432.81/15,554,987.68 = 7,634,462.25/x - Step 3: Cross multiply
11,262,432.81x = 15,554,987.68 × 7,634,462.25 - Step 4: Simplify right side
11,262,432.81x = 118,753,966,242,175.08 - Step 5: Solve for x
x = 118,753,966,242,175.08/11,262,432.81 - Step 6: Final answer
x = 10,544,255.25
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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.