Finding the Fourth Proportional to 998,124,793.18, 1,377,319,777.58 and 552,078,556.72
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Solution
The fourth proportional to 998,124,793.18, 1,377,319,777.58 and 552,078,556.72 is: 761,817,279.91
Step by Step Solution
- Step 1: Write the proportion equation
998,124,793.18 : 1,377,319,777.58 = 552,078,556.72 : x - Step 2: Convert to fraction form
998,124,793.18/1,377,319,777.58 = 552,078,556.72/x - Step 3: Cross multiply
998,124,793.18x = 1,377,319,777.58 × 552,078,556.72 - Step 4: Simplify right side
998,124,793.18x = 760,388,714,948,277,760 - Step 5: Solve for x
x = 760,388,714,948,277,760/998,124,793.18 - Step 6: Final answer
x = 761,817,279.91
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1.5x scale
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.