Finding the Fourth Proportional to 2,128,513,752.60, 2,916,015,128.99 and 2,048,933,284.08
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Solution
The fourth proportional to 2,128,513,752.60, 2,916,015,128.99 and 2,048,933,284.08 is: 2,806,991,708.35
Step by Step Solution
- Step 1: Write the proportion equation
2,128,513,752.60 : 2,916,015,128.99 = 2,048,933,284.08 : x - Step 2: Convert to fraction form
2,128,513,752.60/2,916,015,128.99 = 2,048,933,284.08/x - Step 3: Cross multiply
2,128,513,752.60x = 2,916,015,128.99 × 2,048,933,284.08 - Step 4: Simplify right side
2,128,513,752.60x = 5,974,720,454,658,200,576 - Step 5: Solve for x
x = 5,974,720,454,658,200,576/2,128,513,752.60 - Step 6: Final answer
x = 2,806,991,708.35
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1.5x scale
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.