Finding the Fourth Proportional to 354,297,237.80, 488,930,492.59 and 197,664,368.87
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Solution
The fourth proportional to 354,297,237.80, 488,930,492.59 and 197,664,368.87 is: 272,776,998.89
Step by Step Solution
- Step 1: Write the proportion equation
354,297,237.80 : 488,930,492.59 = 197,664,368.87 : x - Step 2: Convert to fraction form
354,297,237.80/488,930,492.59 = 197,664,368.87/x - Step 3: Cross multiply
354,297,237.80x = 488,930,492.59 × 197,664,368.87 - Step 4: Simplify right side
354,297,237.80x = 96,644,137,239,828,720 - Step 5: Solve for x
x = 96,644,137,239,828,720/354,297,237.80 - Step 6: Final answer
x = 272,776,998.89
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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.