Finding the Fourth Proportional to 19,711,559.87, 27,201,666.08 and 11,009,856.23
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Solution
The fourth proportional to 19,711,559.87, 27,201,666.08 and 11,009,856.23 is: 15,193,441.55
Step by Step Solution
- Step 1: Write the proportion equation
19,711,559.87 : 27,201,666.08 = 11,009,856.23 : x - Step 2: Convert to fraction form
19,711,559.87/27,201,666.08 = 11,009,856.23/x - Step 3: Cross multiply
19,711,559.87x = 27,201,666.08 × 11,009,856.23 - Step 4: Simplify right side
19,711,559.87x = 299,486,432,702,218.38 - Step 5: Solve for x
x = 299,486,432,702,218.38/19,711,559.87 - Step 6: Final answer
x = 15,193,441.55
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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.