Finding the Fourth Proportional to 649,315,745.13, 896,031,722.51 and 351,951,602.80
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Solution
The fourth proportional to 649,315,745.13, 896,031,722.51 and 351,951,602.80 is: 485,680,199.91
Step by Step Solution
- Step 1: Write the proportion equation
649,315,745.13 : 896,031,722.51 = 351,951,602.80 : x - Step 2: Convert to fraction form
649,315,745.13/896,031,722.51 = 351,951,602.80/x - Step 3: Cross multiply
649,315,745.13x = 896,031,722.51 × 351,951,602.80 - Step 4: Simplify right side
649,315,745.13x = 315,359,800,897,039,360 - Step 5: Solve for x
x = 315,359,800,897,039,360/649,315,745.13 - Step 6: Final answer
x = 485,680,199.91
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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.