Finding the Fourth Proportional to 854,279,257.68, 1,178,951,149.26 and 477,913,393.44
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Solution
The fourth proportional to 854,279,257.68, 1,178,951,149.26 and 477,913,393.44 is: 659,546,090.32
Step by Step Solution
- Step 1: Write the proportion equation
854,279,257.68 : 1,178,951,149.26 = 477,913,393.44 : x - Step 2: Convert to fraction form
854,279,257.68/1,178,951,149.26 = 477,913,393.44/x - Step 3: Cross multiply
854,279,257.68x = 1,178,951,149.26 × 477,913,393.44 - Step 4: Simplify right side
854,279,257.68x = 563,436,544,442,834,560 - Step 5: Solve for x
x = 563,436,544,442,834,560/854,279,257.68 - Step 6: Final answer
x = 659,546,090.32
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1.5x scale
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.