Finding the Fourth Proportional to 506,239,530.12, 698,637,676.68 and 283,207,906.92
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Solution
The fourth proportional to 506,239,530.12, 698,637,676.68 and 283,207,906.92 is: 390,842,086.28
Step by Step Solution
- Step 1: Write the proportion equation
506,239,530.12 : 698,637,676.68 = 283,207,906.92 : x - Step 2: Convert to fraction form
506,239,530.12/698,637,676.68 = 283,207,906.92/x - Step 3: Cross multiply
506,239,530.12x = 698,637,676.68 × 283,207,906.92 - Step 4: Simplify right side
506,239,530.12x = 197,859,714,107,994,496 - Step 5: Solve for x
x = 197,859,714,107,994,496/506,239,530.12 - Step 6: Final answer
x = 390,842,086.28
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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.