Finding the Fourth Proportional to 871,279,926.90, 1,306,919,890.35 and 866,178,093.30
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Solution
The fourth proportional to 871,279,926.90, 1,306,919,890.35 and 866,178,093.30 is: 1,299,267,139.95
Step by Step Solution
- Step 1: Write the proportion equation
871,279,926.90 : 1,306,919,890.35 = 866,178,093.30 : x - Step 2: Convert to fraction form
871,279,926.90/1,306,919,890.35 = 866,178,093.30/x - Step 3: Cross multiply
871,279,926.90x = 1,306,919,890.35 × 866,178,093.30 - Step 4: Simplify right side
871,279,926.90x = 1,132,025,378,719,207,936 - Step 5: Solve for x
x = 1,132,025,378,719,207,936/871,279,926.90 - Step 6: Final answer
x = 1,299,267,139.95
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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.