Finding the Fourth Proportional to 18,947,577,117.18, 28,437,691,543.29 and 13,135,568,280.06
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Solution
The fourth proportional to 18,947,577,117.18, 28,437,691,543.29 and 13,135,568,280.06 is: 19,714,670,465.99
Step by Step Solution
- Step 1: Write the proportion equation
18,947,577,117.18 : 28,437,691,543.29 = 13,135,568,280.06 : x - Step 2: Convert to fraction form
18,947,577,117.18/28,437,691,543.29 = 13,135,568,280.06/x - Step 3: Cross multiply
18,947,577,117.18x = 28,437,691,543.29 × 13,135,568,280.06 - Step 4: Simplify right side
18,947,577,117.18x = 373,545,238,994,170,609,664 - Step 5: Solve for x
x = 373,545,238,994,170,609,664/18,947,577,117.18 - Step 6: Final answer
x = 19,714,670,465.99
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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.