Finding the Fourth Proportional to 823,128,372, 1,234,935,101.79 and 331,588,700.37
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Solution
The fourth proportional to 823,128,372, 1,234,935,101.79 and 331,588,700.37 is: 497,480,756.80
Step by Step Solution
- Step 1: Write the proportion equation
823,128,372 : 1,234,935,101.79 = 331,588,700.37 : x - Step 2: Convert to fraction form
823,128,372/1,234,935,101.79 = 331,588,700.37/x - Step 3: Cross multiply
823,128,372x = 1,234,935,101.79 × 331,588,700.37 - Step 4: Simplify right side
823,128,372x = 409,490,525,443,839,744 - Step 5: Solve for x
x = 409,490,525,443,839,744/823,128,372 - Step 6: Final answer
x = 497,480,756.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.