Finding the Fourth Proportional to 140,398,595.57, 193,748,625.35 and 77,675,142.44
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Solution
The fourth proportional to 140,398,595.57, 193,748,625.35 and 77,675,142.44 is: 107,190,901.80
Step by Step Solution
- Step 1: Write the proportion equation
140,398,595.57 : 193,748,625.35 = 77,675,142.44 : x - Step 2: Convert to fraction form
140,398,595.57/193,748,625.35 = 77,675,142.44/x - Step 3: Cross multiply
140,398,595.57x = 193,748,625.35 × 77,675,142.44 - Step 4: Simplify right side
140,398,595.57x = 15,049,452,070,840,890 - Step 5: Solve for x
x = 15,049,452,070,840,890/140,398,595.57 - Step 6: Final answer
x = 107,190,901.80
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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.