Finding the Fourth Proportional to 1,189,292,402.61, 1,783,661,850.44 and 442,659,802.34
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Solution
The fourth proportional to 1,189,292,402.61, 1,783,661,850.44 and 442,659,802.34 is: 663,886,694.65
Step by Step Solution
- Step 1: Write the proportion equation
1,189,292,402.61 : 1,783,661,850.44 = 442,659,802.34 : x - Step 2: Convert to fraction form
1,189,292,402.61/1,783,661,850.44 = 442,659,802.34/x - Step 3: Cross multiply
1,189,292,402.61x = 1,783,661,850.44 × 442,659,802.34 - Step 4: Simplify right side
1,189,292,402.61x = 789,555,402,146,037,376 - Step 5: Solve for x
x = 789,555,402,146,037,376/1,189,292,402.61 - Step 6: Final answer
x = 663,886,694.65
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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.