Finding the Fourth Proportional to 21,326,315.27, 29,430,225.87 and 11,536,735.10
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Solution
The fourth proportional to 21,326,315.27, 29,430,225.87 and 11,536,735.10 is: 15,920,646.18
Step by Step Solution
- Step 1: Write the proportion equation
21,326,315.27 : 29,430,225.87 = 11,536,735.10 : x - Step 2: Convert to fraction form
21,326,315.27/29,430,225.87 = 11,536,735.10/x - Step 3: Cross multiply
21,326,315.27x = 29,430,225.87 × 11,536,735.10 - Step 4: Simplify right side
21,326,315.27x = 339,528,719,648,205.94 - Step 5: Solve for x
x = 339,528,719,648,205.94/21,326,315.27 - Step 6: Final answer
x = 15,920,646.18
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.