Finding the Fourth Proportional to 886,465,906.90, 1,329,698,860.35 and 838,848,793.30
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Solution
The fourth proportional to 886,465,906.90, 1,329,698,860.35 and 838,848,793.30 is: 1,258,273,189.95
Step by Step Solution
- Step 1: Write the proportion equation
886,465,906.90 : 1,329,698,860.35 = 838,848,793.30 : x - Step 2: Convert to fraction form
886,465,906.90/1,329,698,860.35 = 838,848,793.30/x - Step 3: Cross multiply
886,465,906.90x = 1,329,698,860.35 × 838,848,793.30 - Step 4: Simplify right side
886,465,906.90x = 1,115,416,284,456,982,528 - Step 5: Solve for x
x = 1,115,416,284,456,982,528/886,465,906.90 - Step 6: Final answer
x = 1,258,273,189.95
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1.5x scale
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.