Finding the Fourth Proportional to 1,203,201,064.92, 1,658,498,961.38 and 948,467,009.46
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Solution
The fourth proportional to 1,203,201,064.92, 1,658,498,961.38 and 948,467,009.46 is: 1,307,372,139.17
Step by Step Solution
- Step 1: Write the proportion equation
1,203,201,064.92 : 1,658,498,961.38 = 948,467,009.46 : x - Step 2: Convert to fraction form
1,203,201,064.92/1,658,498,961.38 = 948,467,009.46/x - Step 3: Cross multiply
1,203,201,064.92x = 1,658,498,961.38 × 948,467,009.46 - Step 4: Simplify right side
1,203,201,064.92x = 1,573,031,550,088,373,248 - Step 5: Solve for x
x = 1,573,031,550,088,373,248/1,203,201,064.92 - Step 6: Final answer
x = 1,307,372,139.17
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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.