Finding the Fourth Proportional to 357,038,640.64, 492,696,739.02 and 198,278,843.68
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Solution
The fourth proportional to 357,038,640.64, 492,696,739.02 and 198,278,843.68 is: 273,615,593.88
Step by Step Solution
- Step 1: Write the proportion equation
357,038,640.64 : 492,696,739.02 = 198,278,843.68 : x - Step 2: Convert to fraction form
357,038,640.64/492,696,739.02 = 198,278,843.68/x - Step 3: Cross multiply
357,038,640.64x = 492,696,739.02 × 198,278,843.68 - Step 4: Simplify right side
357,038,640.64x = 97,691,339,697,792,336 - Step 5: Solve for x
x = 97,691,339,697,792,336/357,038,640.64 - Step 6: Final answer
x = 273,615,593.88
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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.