Finding the Fourth Proportional to 634,431,885.34, 875,518,521.18 and 355,955,226.70
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Solution
The fourth proportional to 634,431,885.34, 875,518,521.18 and 355,955,226.70 is: 491,219,626.39
Step by Step Solution
- Step 1: Write the proportion equation
634,431,885.34 : 875,518,521.18 = 355,955,226.70 : x - Step 2: Convert to fraction form
634,431,885.34/875,518,521.18 = 355,955,226.70/x - Step 3: Cross multiply
634,431,885.34x = 875,518,521.18 × 355,955,226.70 - Step 4: Simplify right side
634,431,885.34x = 311,645,393,686,675,648 - Step 5: Solve for x
x = 311,645,393,686,675,648/634,431,885.34 - Step 6: Final answer
x = 491,219,626.39
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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.