Finding the Fourth Proportional to 1,274,984,520,425.90, 1,759,478,508,239.10 and 696,923,347,709.70
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Solution
The fourth proportional to 1,274,984,520,425.90, 1,759,478,508,239.10 and 696,923,347,709.70 is: 961,754,148,807.75
Step by Step Solution
- Step 1: Write the proportion equation
1,274,984,520,425.90 : 1,759,478,508,239.10 = 696,923,347,709.70 : x - Step 2: Convert to fraction form
1,274,984,520,425.90/1,759,478,508,239.10 = 696,923,347,709.70/x - Step 3: Cross multiply
1,274,984,520,425.90x = 1,759,478,508,239.10 × 696,923,347,709.70 - Step 4: Simplify right side
1,274,984,520,425.90x = 1,226,221,652,185,262,522,892,288 - Step 5: Solve for x
x = 1,226,221,652,185,262,522,892,288/1,274,984,520,425.90 - Step 6: Final answer
x = 961,754,148,807.75
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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.