Finding the Fourth Proportional to 2,128,513,734.99, 2,916,015,104.75 and 2,048,933,266.47
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Solution
The fourth proportional to 2,128,513,734.99, 2,916,015,104.75 and 2,048,933,266.47 is: 2,806,991,684.11
Step by Step Solution
- Step 1: Write the proportion equation
2,128,513,734.99 : 2,916,015,104.75 = 2,048,933,266.47 : x - Step 2: Convert to fraction form
2,128,513,734.99/2,916,015,104.75 = 2,048,933,266.47/x - Step 3: Cross multiply
2,128,513,734.99x = 2,916,015,104.75 × 2,048,933,266.47 - Step 4: Simplify right side
2,128,513,734.99x = 5,974,720,353,641,031,680 - Step 5: Solve for x
x = 5,974,720,353,641,031,680/2,128,513,734.99 - Step 6: Final answer
x = 2,806,991,684.11
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.