Finding the Fourth Proportional to 1,489,994,044,943.10, 2,056,574,356,676.20 and 970,444,134,893.55
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Solution
The fourth proportional to 1,489,994,044,943.10, 2,056,574,356,676.20 and 970,444,134,893.55 is: 1,339,462,079,853.55
Step by Step Solution
- Step 1: Write the proportion equation
1,489,994,044,943.10 : 2,056,574,356,676.20 = 970,444,134,893.55 : x - Step 2: Convert to fraction form
1,489,994,044,943.10/2,056,574,356,676.20 = 970,444,134,893.55/x - Step 3: Cross multiply
1,489,994,044,943.10x = 2,056,574,356,676.20 × 970,444,134,893.55 - Step 4: Simplify right side
1,489,994,044,943.10x = 1,995,790,522,408,893,969,072,128 - Step 5: Solve for x
x = 1,995,790,522,408,893,969,072,128/1,489,994,044,943.10 - Step 6: Final answer
x = 1,339,462,079,853.55
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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.