Finding the Fourth Proportional to 3,588,480,712.80, 5,385,128,518.80 and 1,259,413,192.80
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Solution
The fourth proportional to 3,588,480,712.80, 5,385,128,518.80 and 1,259,413,192.80 is: 1,889,964,707.71
Step by Step Solution
- Step 1: Write the proportion equation
3,588,480,712.80 : 5,385,128,518.80 = 1,259,413,192.80 : x - Step 2: Convert to fraction form
3,588,480,712.80/5,385,128,518.80 = 1,259,413,192.80/x - Step 3: Cross multiply
3,588,480,712.80x = 5,385,128,518.80 × 1,259,413,192.80 - Step 4: Simplify right side
3,588,480,712.80x = 6,782,101,901,500,242,944 - Step 5: Solve for x
x = 6,782,101,901,500,242,944/3,588,480,712.80 - Step 6: Final answer
x = 1,889,964,707.71
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.