Finding the Fourth Proportional to 2,900,580,832.80, 4,350,871,249.20 and 961,632,122.40
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Solution
The fourth proportional to 2,900,580,832.80, 4,350,871,249.20 and 961,632,122.40 is: 1,442,448,183.60
Step by Step Solution
- Step 1: Write the proportion equation
2,900,580,832.80 : 4,350,871,249.20 = 961,632,122.40 : x - Step 2: Convert to fraction form
2,900,580,832.80/4,350,871,249.20 = 961,632,122.40/x - Step 3: Cross multiply
2,900,580,832.80x = 4,350,871,249.20 × 961,632,122.40 - Step 4: Simplify right side
2,900,580,832.80x = 4,183,937,553,657,334,784 - Step 5: Solve for x
x = 4,183,937,553,657,334,784/2,900,580,832.80 - Step 6: Final answer
x = 1,442,448,183.60
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.