Finding the Fourth Proportional to 2,211,818,199.97, 3,317,704,576.42 and 1,278,547,212.53
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Solution
The fourth proportional to 2,211,818,199.97, 3,317,704,576.42 and 1,278,547,212.53 is: 1,917,807,683.39
Step by Step Solution
- Step 1: Write the proportion equation
2,211,818,199.97 : 3,317,704,576.42 = 1,278,547,212.53 : x - Step 2: Convert to fraction form
2,211,818,199.97/3,317,704,576.42 = 1,278,547,212.53/x - Step 3: Cross multiply
2,211,818,199.97x = 3,317,704,576.42 × 1,278,547,212.53 - Step 4: Simplify right side
2,211,818,199.97x = 4,241,841,938,174,141,440 - Step 5: Solve for x
x = 4,241,841,938,174,141,440/2,211,818,199.97 - Step 6: Final answer
x = 1,917,807,683.39
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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.