Finding the Fourth Proportional to 634,431,883.84, 875,518,519.11 and 355,955,225.20
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Solution
The fourth proportional to 634,431,883.84, 875,518,519.11 and 355,955,225.20 is: 491,219,624.32
Step by Step Solution
- Step 1: Write the proportion equation
634,431,883.84 : 875,518,519.11 = 355,955,225.20 : x - Step 2: Convert to fraction form
634,431,883.84/875,518,519.11 = 355,955,225.20/x - Step 3: Cross multiply
634,431,883.84x = 875,518,519.11 × 355,955,225.20 - Step 4: Simplify right side
634,431,883.84x = 311,645,391,636,570,560 - Step 5: Solve for x
x = 311,645,391,636,570,560/634,431,883.84 - Step 6: Final answer
x = 491,219,624.32
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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.