Finding the Fourth Proportional to 1,299,962,492.90, 1,793,951,717.36 and 705,246,977.24
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Solution
The fourth proportional to 1,299,962,492.90, 1,793,951,717.36 and 705,246,977.24 is: 973,242,714.99
Step by Step Solution
- Step 1: Write the proportion equation
1,299,962,492.90 : 1,793,951,717.36 = 705,246,977.24 : x - Step 2: Convert to fraction form
1,299,962,492.90/1,793,951,717.36 = 705,246,977.24/x - Step 3: Cross multiply
1,299,962,492.90x = 1,793,951,717.36 × 705,246,977.24 - Step 4: Simplify right side
1,299,962,492.90x = 1,265,179,025,970,150,912 - Step 5: Solve for x
x = 1,265,179,025,970,150,912/1,299,962,492.90 - Step 6: Final answer
x = 973,242,714.99
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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.