Finding the Fourth Proportional to 1,863,363,721.60, 2,792,671,812.60 and 990,383,305.60
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Solution
The fourth proportional to 1,863,363,721.60, 2,792,671,812.60 and 990,383,305.60 is: 1,484,313,292.76
Step by Step Solution
- Step 1: Write the proportion equation
1,863,363,721.60 : 2,792,671,812.60 = 990,383,305.60 : x - Step 2: Convert to fraction form
1,863,363,721.60/2,792,671,812.60 = 990,383,305.60/x - Step 3: Cross multiply
1,863,363,721.60x = 2,792,671,812.60 × 990,383,305.60 - Step 4: Simplify right side
1,863,363,721.60x = 2,765,815,541,218,731,520 - Step 5: Solve for x
x = 2,765,815,541,218,731,520/1,863,363,721.60 - Step 6: Final answer
x = 1,484,313,292.76
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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.