Finding the Fourth Proportional to 1,383,032,890.11, 1,908,591,099.29 and 747,953,368.14
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Solution
The fourth proportional to 1,383,032,890.11, 1,908,591,099.29 and 747,953,368.14 is: 1,032,178,736.55
Step by Step Solution
- Step 1: Write the proportion equation
1,383,032,890.11 : 1,908,591,099.29 = 747,953,368.14 : x - Step 2: Convert to fraction form
1,383,032,890.11/1,908,591,099.29 = 747,953,368.14/x - Step 3: Cross multiply
1,383,032,890.11x = 1,908,591,099.29 × 747,953,368.14 - Step 4: Simplify right side
1,383,032,890.11x = 1,427,537,141,115,980,544 - Step 5: Solve for x
x = 1,427,537,141,115,980,544/1,383,032,890.11 - Step 6: Final answer
x = 1,032,178,736.55
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.