Finding the Fourth Proportional to 1,778,820,456.92, 2,453,340,884.68 and 1,563,779,311.68
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Solution
The fourth proportional to 1,778,820,456.92, 2,453,340,884.68 and 1,563,779,311.68 is: 2,156,757,139.28
Step by Step Solution
- Step 1: Write the proportion equation
1,778,820,456.92 : 2,453,340,884.68 = 1,563,779,311.68 : x - Step 2: Convert to fraction form
1,778,820,456.92/2,453,340,884.68 = 1,563,779,311.68/x - Step 3: Cross multiply
1,778,820,456.92x = 2,453,340,884.68 × 1,563,779,311.68 - Step 4: Simplify right side
1,778,820,456.92x = 3,836,483,719,961,292,800 - Step 5: Solve for x
x = 3,836,483,719,961,292,800/1,778,820,456.92 - Step 6: Final answer
x = 2,156,757,139.28
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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.