Finding the Fourth Proportional to 119,122,801.20, 178,684,201.80 and 54,552,719.70
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Solution
The fourth proportional to 119,122,801.20, 178,684,201.80 and 54,552,719.70 is: 81,829,079.55
Step by Step Solution
- Step 1: Write the proportion equation
119,122,801.20 : 178,684,201.80 = 54,552,719.70 : x - Step 2: Convert to fraction form
119,122,801.20/178,684,201.80 = 54,552,719.70/x - Step 3: Cross multiply
119,122,801.20x = 178,684,201.80 × 54,552,719.70 - Step 4: Simplify right side
119,122,801.20x = 9,747,709,175,613,636 - Step 5: Solve for x
x = 9,747,709,175,613,636/119,122,801.20 - Step 6: Final answer
x = 81,829,079.55
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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.