Finding the Fourth Proportional to 15,143,206.36, 20,897,515.64 and 8,267,688.44
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Solution
The fourth proportional to 15,143,206.36, 20,897,515.64 and 8,267,688.44 is: 11,409,350.46
Step by Step Solution
- Step 1: Write the proportion equation
15,143,206.36 : 20,897,515.64 = 8,267,688.44 : x - Step 2: Convert to fraction form
15,143,206.36/20,897,515.64 = 8,267,688.44/x - Step 3: Cross multiply
15,143,206.36x = 20,897,515.64 × 8,267,688.44 - Step 4: Simplify right side
15,143,206.36x = 172,774,148,481,547.22 - Step 5: Solve for x
x = 172,774,148,481,547.22/15,143,206.36 - Step 6: Final answer
x = 11,409,350.46
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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.