Finding the Fourth Proportional to 1,273,301,743.41, 1,757,138,407.16 and 716,383,461.87
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Solution
The fourth proportional to 1,273,301,743.41, 1,757,138,407.16 and 716,383,461.87 is: 988,599,050.95
Step by Step Solution
- Step 1: Write the proportion equation
1,273,301,743.41 : 1,757,138,407.16 = 716,383,461.87 : x - Step 2: Convert to fraction form
1,273,301,743.41/1,757,138,407.16 = 716,383,461.87/x - Step 3: Cross multiply
1,273,301,743.41x = 1,757,138,407.16 × 716,383,461.87 - Step 4: Simplify right side
1,273,301,743.41x = 1,258,784,895,102,436,352 - Step 5: Solve for x
x = 1,258,784,895,102,436,352/1,273,301,743.41 - Step 6: Final answer
x = 988,599,050.95
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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.