Finding the Fourth Proportional to 9,419,348,479.24, 12,998,115,213.99 and 5,190,023,690.56
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Solution
The fourth proportional to 9,419,348,479.24, 12,998,115,213.99 and 5,190,023,690.56 is: 7,161,909,981.56
Step by Step Solution
- Step 1: Write the proportion equation
9,419,348,479.24 : 12,998,115,213.99 = 5,190,023,690.56 : x - Step 2: Convert to fraction form
9,419,348,479.24/12,998,115,213.99 = 5,190,023,690.56/x - Step 3: Cross multiply
9,419,348,479.24x = 12,998,115,213.99 × 5,190,023,690.56 - Step 4: Simplify right side
9,419,348,479.24x = 67,460,525,893,236,465,664 - Step 5: Solve for x
x = 67,460,525,893,236,465,664/9,419,348,479.24 - Step 6: Final answer
x = 7,161,909,981.56
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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.