Finding the Fourth Proportional to 886,464,896.40, 1,329,697,344.60 and 519,132,877.20
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Solution
The fourth proportional to 886,464,896.40, 1,329,697,344.60 and 519,132,877.20 is: 778,699,315.80
Step by Step Solution
- Step 1: Write the proportion equation
886,464,896.40 : 1,329,697,344.60 = 519,132,877.20 : x - Step 2: Convert to fraction form
886,464,896.40/1,329,697,344.60 = 519,132,877.20/x - Step 3: Cross multiply
886,464,896.40x = 1,329,697,344.60 × 519,132,877.20 - Step 4: Simplify right side
886,464,896.40x = 690,289,608,307,397,760 - Step 5: Solve for x
x = 690,289,608,307,397,760/886,464,896.40 - Step 6: Final answer
x = 778,699,315.80
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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.