Finding the Fourth Proportional to 518,996,285.10, 716,216,771.62 and 280,841,471.68
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Solution
The fourth proportional to 518,996,285.10, 716,216,771.62 and 280,841,471.68 is: 387,562,258.07
Step by Step Solution
- Step 1: Write the proportion equation
518,996,285.10 : 716,216,771.62 = 280,841,471.68 : x - Step 2: Convert to fraction form
518,996,285.10/716,216,771.62 = 280,841,471.68/x - Step 3: Cross multiply
518,996,285.10x = 716,216,771.62 × 280,841,471.68 - Step 4: Simplify right side
518,996,285.10x = 201,143,372,183,659,264 - Step 5: Solve for x
x = 201,143,372,183,659,264/518,996,285.10 - Step 6: Final answer
x = 387,562,258.07
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.