Finding the Fourth Proportional to 1,020,307,538.01, 1,530,704,183.17 and 330,214,791.99
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Solution
The fourth proportional to 1,020,307,538.01, 1,530,704,183.17 and 330,214,791.99 is: 495,400,793.01
Step by Step Solution
- Step 1: Write the proportion equation
1,020,307,538.01 : 1,530,704,183.17 = 330,214,791.99 : x - Step 2: Convert to fraction form
1,020,307,538.01/1,530,704,183.17 = 330,214,791.99/x - Step 3: Cross multiply
1,020,307,538.01x = 1,530,704,183.17 × 330,214,791.99 - Step 4: Simplify right side
1,020,307,538.01x = 505,461,163,443,704,448 - Step 5: Solve for x
x = 505,461,163,443,704,448/1,020,307,538.01 - Step 6: Final answer
x = 495,400,793.01
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Double scale
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Similar ratio
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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.