Finding the Fourth Proportional to 2,169,991,404.84, 3,254,987,107.28 and 638,181,612.84
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Solution
The fourth proportional to 2,169,991,404.84, 3,254,987,107.28 and 638,181,612.84 is: 957,272,419.27
Step by Step Solution
- Step 1: Write the proportion equation
2,169,991,404.84 : 3,254,987,107.28 = 638,181,612.84 : x - Step 2: Convert to fraction form
2,169,991,404.84/3,254,987,107.28 = 638,181,612.84/x - Step 3: Cross multiply
2,169,991,404.84x = 3,254,987,107.28 × 638,181,612.84 - Step 4: Simplify right side
2,169,991,404.84x = 2,077,272,921,897,356,800 - Step 5: Solve for x
x = 2,077,272,921,897,356,800/2,169,991,404.84 - Step 6: Final answer
x = 957,272,419.27
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1.5x scale
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.