Finding the Fourth Proportional to 518,539,201.20, 777,808,801.80 and 518,539,201.20
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Solution
The fourth proportional to 518,539,201.20, 777,808,801.80 and 518,539,201.20 is: 777,808,801.80
Step by Step Solution
- Step 1: Write the proportion equation
518,539,201.20 : 777,808,801.80 = 518,539,201.20 : x - Step 2: Convert to fraction form
518,539,201.20/777,808,801.80 = 518,539,201.20/x - Step 3: Cross multiply
518,539,201.20x = 777,808,801.80 × 518,539,201.20 - Step 4: Simplify right side
518,539,201.20x = 403,324,354,771,701,120 - Step 5: Solve for x
x = 403,324,354,771,701,120/518,539,201.20 - Step 6: Final answer
x = 777,808,801.80
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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.