Finding the Fourth Proportional to 168,420,688.20, 252,135,020.70 and 125,480,255.40
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Solution
The fourth proportional to 168,420,688.20, 252,135,020.70 and 125,480,255.40 is: 187,850,834.31
Step by Step Solution
- Step 1: Write the proportion equation
168,420,688.20 : 252,135,020.70 = 125,480,255.40 : x - Step 2: Convert to fraction form
168,420,688.20/252,135,020.70 = 125,480,255.40/x - Step 3: Cross multiply
168,420,688.20x = 252,135,020.70 × 125,480,255.40 - Step 4: Simplify right side
168,420,688.20x = 31,637,966,792,720,288 - Step 5: Solve for x
x = 31,637,966,792,720,288/168,420,688.20 - Step 6: Final answer
x = 187,850,834.31
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.