Finding the Fourth Proportional to 78,078,593.97, 107,748,460.84 and 43,273,526.42
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Solution
The fourth proportional to 78,078,593.97, 107,748,460.84 and 43,273,526.42 is: 59,717,467.11
Step by Step Solution
- Step 1: Write the proportion equation
78,078,593.97 : 107,748,460.84 = 43,273,526.42 : x - Step 2: Convert to fraction form
78,078,593.97/107,748,460.84 = 43,273,526.42/x - Step 3: Cross multiply
78,078,593.97x = 107,748,460.84 × 43,273,526.42 - Step 4: Simplify right side
78,078,593.97x = 4,662,655,867,035,263 - Step 5: Solve for x
x = 4,662,655,867,035,263/78,078,593.97 - Step 6: Final answer
x = 59,717,467.11
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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.