Finding the Fourth Proportional to 5,157,757,919.46, 7,117,730,032.68 and 2,930,212,339.14
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Solution
The fourth proportional to 5,157,757,919.46, 7,117,730,032.68 and 2,930,212,339.14 is: 4,043,706,721.82
Step by Step Solution
- Step 1: Write the proportion equation
5,157,757,919.46 : 7,117,730,032.68 = 2,930,212,339.14 : x - Step 2: Convert to fraction form
5,157,757,919.46/7,117,730,032.68 = 2,930,212,339.14/x - Step 3: Cross multiply
5,157,757,919.46x = 7,117,730,032.68 × 2,930,212,339.14 - Step 4: Simplify right side
5,157,757,919.46x = 20,856,460,368,453,337,088 - Step 5: Solve for x
x = 20,856,460,368,453,337,088/5,157,757,919.46 - Step 6: Final answer
x = 4,043,706,721.82
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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.