Finding the Fourth Proportional to 859,627,770.70, 1,289,441,656.05 and 368,257,422.10
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Solution
The fourth proportional to 859,627,770.70, 1,289,441,656.05 and 368,257,422.10 is: 552,386,133.15
Step by Step Solution
- Step 1: Write the proportion equation
859,627,770.70 : 1,289,441,656.05 = 368,257,422.10 : x - Step 2: Convert to fraction form
859,627,770.70/1,289,441,656.05 = 368,257,422.10/x - Step 3: Cross multiply
859,627,770.70x = 1,289,441,656.05 × 368,257,422.10 - Step 4: Simplify right side
859,627,770.70x = 474,846,460,205,327,872 - Step 5: Solve for x
x = 474,846,460,205,327,872/859,627,770.70 - Step 6: Final answer
x = 552,386,133.15
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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.