Finding the Fourth Proportional to 4,989,432.87, 6,885,402.21 and 2,697,593.49
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Solution
The fourth proportional to 4,989,432.87, 6,885,402.21 and 2,697,593.49 is: 3,722,670.82
Step by Step Solution
- Step 1: Write the proportion equation
4,989,432.87 : 6,885,402.21 = 2,697,593.49 : x - Step 2: Convert to fraction form
4,989,432.87/6,885,402.21 = 2,697,593.49/x - Step 3: Cross multiply
4,989,432.87x = 6,885,402.21 × 2,697,593.49 - Step 4: Simplify right side
4,989,432.87x = 18,574,016,177,727.61 - Step 5: Solve for x
x = 18,574,016,177,727.61/4,989,432.87 - Step 6: Final answer
x = 3,722,670.82
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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.