Finding the Fourth Proportional to 2,747,173,903.68, 4,120,786,363.14 and 782,026,913.64
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Solution
The fourth proportional to 2,747,173,903.68, 4,120,786,363.14 and 782,026,913.64 is: 1,173,047,631.61
Step by Step Solution
- Step 1: Write the proportion equation
2,747,173,903.68 : 4,120,786,363.14 = 782,026,913.64 : x - Step 2: Convert to fraction form
2,747,173,903.68/4,120,786,363.14 = 782,026,913.64/x - Step 3: Cross multiply
2,747,173,903.68x = 4,120,786,363.14 × 782,026,913.64 - Step 4: Simplify right side
2,747,173,903.68x = 3,222,565,841,336,174,080 - Step 5: Solve for x
x = 3,222,565,841,336,174,080/2,747,173,903.68 - Step 6: Final answer
x = 1,173,047,631.61
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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.