Finding the Fourth Proportional to 3,785,868,722.89, 5,224,402,587.69 and 2,115,130,411.99
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Solution
The fourth proportional to 3,785,868,722.89, 5,224,402,587.69 and 2,115,130,411.99 is: 2,918,826,194.60
Step by Step Solution
- Step 1: Write the proportion equation
3,785,868,722.89 : 5,224,402,587.69 = 2,115,130,411.99 : x - Step 2: Convert to fraction form
3,785,868,722.89/5,224,402,587.69 = 2,115,130,411.99/x - Step 3: Cross multiply
3,785,868,722.89x = 5,224,402,587.69 × 2,115,130,411.99 - Step 4: Simplify right side
3,785,868,722.89x = 11,050,292,797,702,371,328 - Step 5: Solve for x
x = 11,050,292,797,702,371,328/3,785,868,722.89 - Step 6: Final answer
x = 2,918,826,194.60
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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.