Finding the Fourth Proportional to 26,128,894.88, 39,194,867.75 and 7,933,683.64
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Solution
The fourth proportional to 26,128,894.88, 39,194,867.75 and 7,933,683.64 is: 11,900,988.64
Step by Step Solution
- Step 1: Write the proportion equation
26,128,894.88 : 39,194,867.75 = 7,933,683.64 : x - Step 2: Convert to fraction form
26,128,894.88/39,194,867.75 = 7,933,683.64/x - Step 3: Cross multiply
26,128,894.88x = 39,194,867.75 × 7,933,683.64 - Step 4: Simplify right side
26,128,894.88x = 310,959,681,040,138.62 - Step 5: Solve for x
x = 310,959,681,040,138.62/26,128,894.88 - Step 6: Final answer
x = 11,900,988.64
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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.