Finding the Fourth Proportional to 20,883,519,767.34, 28,819,260,387.87 and 11,368,143,752.99
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Solution
The fourth proportional to 20,883,519,767.34, 28,819,260,387.87 and 11,368,143,752.99 is: 15,688,040,071.51
Step by Step Solution
- Step 1: Write the proportion equation
20,883,519,767.34 : 28,819,260,387.87 = 11,368,143,752.99 : x - Step 2: Convert to fraction form
20,883,519,767.34/28,819,260,387.87 = 11,368,143,752.99/x - Step 3: Cross multiply
20,883,519,767.34x = 28,819,260,387.87 × 11,368,143,752.99 - Step 4: Simplify right side
20,883,519,767.34x = 327,621,494,944,156,483,584 - Step 5: Solve for x
x = 327,621,494,944,156,483,584/20,883,519,767.34 - Step 6: Final answer
x = 15,688,040,071.51
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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.