Finding the Fourth Proportional to 485,110,411.20, 727,665,616.80 and 370,319,155.20
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Solution
The fourth proportional to 485,110,411.20, 727,665,616.80 and 370,319,155.20 is: 555,478,732.80
Step by Step Solution
- Step 1: Write the proportion equation
485,110,411.20 : 727,665,616.80 = 370,319,155.20 : x - Step 2: Convert to fraction form
485,110,411.20/727,665,616.80 = 370,319,155.20/x - Step 3: Cross multiply
485,110,411.20x = 727,665,616.80 × 370,319,155.20 - Step 4: Simplify right side
485,110,411.20x = 269,468,516,481,462,912 - Step 5: Solve for x
x = 269,468,516,481,462,912/485,110,411.20 - Step 6: Final answer
x = 555,478,732.80
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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.