Finding the Fourth Proportional to 1,379,536,806.16, 1,903,476,600.12 and 792,712,568.08
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Solution
The fourth proportional to 1,379,536,806.16, 1,903,476,600.12 and 792,712,568.08 is: 1,093,780,040.68
Step by Step Solution
- Step 1: Write the proportion equation
1,379,536,806.16 : 1,903,476,600.12 = 792,712,568.08 : x - Step 2: Convert to fraction form
1,379,536,806.16/1,903,476,600.12 = 792,712,568.08/x - Step 3: Cross multiply
1,379,536,806.16x = 1,903,476,600.12 × 792,712,568.08 - Step 4: Simplify right side
1,379,536,806.16x = 1,508,909,823,961,312,512 - Step 5: Solve for x
x = 1,508,909,823,961,312,512/1,379,536,806.16 - Step 6: Final answer
x = 1,093,780,040.68
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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.