Finding the Fourth Proportional to 279,527,894.21, 385,765,752.41 and 154,079,807.19
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Solution
The fourth proportional to 279,527,894.21, 385,765,752.41 and 154,079,807.19 is: 212,639,647.00
Step by Step Solution
- Step 1: Write the proportion equation
279,527,894.21 : 385,765,752.41 = 154,079,807.19 : x - Step 2: Convert to fraction form
279,527,894.21/385,765,752.41 = 154,079,807.19/x - Step 3: Cross multiply
279,527,894.21x = 385,765,752.41 × 154,079,807.19 - Step 4: Simplify right side
279,527,894.21x = 59,438,712,751,067,672 - Step 5: Solve for x
x = 59,438,712,751,067,672/279,527,894.21 - Step 6: Final answer
x = 212,639,647.00
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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.