Finding the Fourth Proportional to 2,090,581,007.76, 3,135,871,510.56 and 780,585,364.08
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Solution
The fourth proportional to 2,090,581,007.76, 3,135,871,510.56 and 780,585,364.08 is: 1,170,878,045.72
Step by Step Solution
- Step 1: Write the proportion equation
2,090,581,007.76 : 3,135,871,510.56 = 780,585,364.08 : x - Step 2: Convert to fraction form
2,090,581,007.76/3,135,871,510.56 = 780,585,364.08/x - Step 3: Cross multiply
2,090,581,007.76x = 3,135,871,510.56 × 780,585,364.08 - Step 4: Simplify right side
2,090,581,007.76x = 2,447,815,404,778,577,408 - Step 5: Solve for x
x = 2,447,815,404,778,577,408/2,090,581,007.76 - Step 6: Final answer
x = 1,170,878,045.72
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.