Finding the Fourth Proportional to 2,910,340,913.70, 4,365,548,695.35 and 971,644,145.70
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Solution
The fourth proportional to 2,910,340,913.70, 4,365,548,695.35 and 971,644,145.70 is: 1,457,478,679.78
Step by Step Solution
- Step 1: Write the proportion equation
2,910,340,913.70 : 4,365,548,695.35 = 971,644,145.70 : x - Step 2: Convert to fraction form
2,910,340,913.70/4,365,548,695.35 = 971,644,145.70/x - Step 3: Cross multiply
2,910,340,913.70x = 4,365,548,695.35 × 971,644,145.70 - Step 4: Simplify right side
2,910,340,913.70x = 4,241,759,832,605,101,056 - Step 5: Solve for x
x = 4,241,759,832,605,101,056/2,910,340,913.70 - Step 6: Final answer
x = 1,457,478,679.78
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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.