Finding the Fourth Proportional to 782,159,969.80, 1,173,239,954.70 and 352,178,273.80
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Solution
The fourth proportional to 782,159,969.80, 1,173,239,954.70 and 352,178,273.80 is: 528,267,410.70
Step by Step Solution
- Step 1: Write the proportion equation
782,159,969.80 : 1,173,239,954.70 = 352,178,273.80 : x - Step 2: Convert to fraction form
782,159,969.80/1,173,239,954.70 = 352,178,273.80/x - Step 3: Cross multiply
782,159,969.80x = 1,173,239,954.70 × 352,178,273.80 - Step 4: Simplify right side
782,159,969.80x = 413,189,621,999,436,224 - Step 5: Solve for x
x = 413,189,621,999,436,224/782,159,969.80 - Step 6: Final answer
x = 528,267,410.70
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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.