Finding the Fourth Proportional to 12,752,414,496,985, 19,128,621,745,478 and 12,752,414,496,985
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Solution
The fourth proportional to 12,752,414,496,985, 19,128,621,745,478 and 12,752,414,496,985 is: 19,128,621,745,478
Step by Step Solution
- Step 1: Write the proportion equation
12,752,414,496,985 : 19,128,621,745,478 = 12,752,414,496,985 : x - Step 2: Convert to fraction form
12,752,414,496,985/19,128,621,745,478 = 12,752,414,496,985/x - Step 3: Cross multiply
12,752,414,496,985x = 19,128,621,745,478 × 12,752,414,496,985 - Step 4: Simplify right side
12,752,414,496,985x = 243,936,113,254,376,161,086,013,440 - Step 5: Solve for x
x = 243,936,113,254,376,161,086,013,440/12,752,414,496,985 - Step 6: Final answer
x = 19,128,621,745,478
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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.